chapter 15
Auditing and Assurance Services, 14e, Global Edition (Arens)
Chapter 15 Audit Sampling for Tests of Controls and Substantive Tests of Transactions
Learning Objective 15-1
1) A sample in which the characteristics of the sample are the same as those of the population is a(n):
A) variables sample.
B) representative sample.
C) attributes sample.
D) random sample.
Answer: B
Terms: Sample in which characteristics of sample are same as population
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
2) When the auditor decides to select less than 100 percent of the population for testing, the auditor is said to use:
A) audit sampling.
B) representative sampling.
C) poor judgment.
D) estimation sampling.
Answer: A
Terms: Auditor selects less than 100 percent of population for testng
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
3) To determine if a sample is truly representative of the population, an auditor would be required to:
A) conduct multiple samples of the same population.
B) never use sampling because of the expense involved.
C) audit the entire population.
D) use systematic sample selection.
Answer: C
Terms: Sample truly representative of population
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
4) One of the ways to eliminate nonsampling risk is through:
A) proper supervision and instruction of the client's employees.
B) proper supervision and instruction of the audit team.
C) the use of attributes sampling rather than variables sampling.
D) controls which ensure that the sample drawn is random and representative.
Answer: B
Terms: Ways to eliminate nonsampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
5) Which one of the choices below is most correct regarding a cause of sampling risk?
A) ineffective use of audit procedures
B) testing less than the entire population
C) use of extensive tests of controls
D) the possibility that a properly-selected sample still may not be representative
Answer: B
Terms: Correct regarding sampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
6) An auditor can increase the likelihood that a sample is representative by using care in:
A)
Designing the sampling process
Designing the sample selection
Yes
Yes
B)
Designing the sampling process
Designing the sample selection
No
No
C)
Designing the sampling process
Designing the sample selection
Yes
No
D)
Designing the sampling process
Designing the sample selection
No
Yes
Answer: A
Terms: Increase likelihood that sample is representatigve
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
7) Which of the following is the risk that audit tests will not uncover existing exceptions in a sample?
A) Sampling risk
B) Nonsampling risk
C) Audit risk
D) Detection risk
Answer: B
Terms: Risk that audit tests will not uncover existing exceptions
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
8) Which of the following is the risk that an auditor will reach an incorrect conclusion because a sample is not representative of the population?
A) Sampling risk
B) Nonsampling risk
C) Audit risk
D) Detection risk
Answer: A
Terms: Risk auditor will reach an incorrect conclusion
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
9) Sampling risk may be controlled by:
A)
Adjusting the sample size
Always using random sampling
Yes
Yes
B)
Adjusting the sample size
Always using random sampling
No
No
C)
Adjusting the sample size
Always using random sampling
Yes
No
D)
Adjusting the sample size
Always using random sampling
No
Yes
Answer: C
Terms: Sampling risk controlled by
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
10) Which of the following statements is most correct?
A) A sample of all items of a population will eliminate sampling risk, but increase nonsampling risk.
B) The use of an appropriate sample selection technique ensures a representative sample.
C) The auditor's failure to recognize an exception is a significant cause of sampling risk.
D) The use of inappropriate audit procedures is a significant cause of nonsampling risk.
Answer: D
Terms: Sample selection; Sampling and nonsampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
11) Which of the following statements best expresses the impact that the performance of audit procedures has on statistical vs. nonstatistical sampling?
A) Audit procedures on the sample item will vary as a result of using either statistical or nonstatistical sampling.
B) The audit procedures will be the same for either statistical or nonstatistical sampling but they must be performed differently for each.
C) Statistical sampling requires quantitative audit procedures, whereas nonstatistical sampling requires judgmental audit procedures.
D) Audit procedures on the sample item will not vary as a result of using either statistical or nonstatistical sampling.
Answer: D
Terms: Statistical vs. nonstatistical sampling
Diff: Challenging
Objective: LO 15-1
AACSB: Reflective thinking skills
12) Briefly explain why auditors utilize audit sampling.
Answer: Auditors use sampling techniques primarily because it is generally impractical to audit all transactions or balances. Consequently, auditors must design strategies to select items from the population that are likely to be representative of the remaining unaudited population items. In addition, auditors often use sampling techniques because of economic realities. That is, clients generally do not want to incur the substantial fees associated with auditing every transaction or balance.
Terms: Audit sampling
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
13) Discuss what is meant by "sampling risk" and "nonsampling risk".
Answer: Sampling risk occurs when the sample is not representative of the population; that is, the characteristics of interest in the sample are not the same as those in the population.
Nonsampling risk occurs when audit tests do not uncover existing exceptions in the sample.
Terms: Sampling and nonsampling risks
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
14) Discuss what is meant by "nonsampling risk."
Answer: Nonsampling risk occurs when audit tests do not uncover existing exceptions in the sample.
Terms: Nonsampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
15) Discuss two causes of nonsampling risk. Also discuss ways the auditor can control nonsampling risk.
Answer: The two causes of nonsampling risk are (1) the auditor's failure to recognize exceptions and (2) inappropriate or ineffective audit procedures. The auditor can control nonsampling risk through careful design of audit procedures and through proper instruction, supervision, and review.
Terms: Nonsampling risk
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
16) Sampling risk results from the auditor's failure to recognize exceptions in transaction data.
A) True
B) False
Answer: B
Terms: Sampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
17) Even when nonsampling risk is zero, there is always a possibility that a sample is not representative of the population.
A) True
B) False
Answer: A
Terms: Nonsampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
18) If a particular internal control is not followed by the client exactly 6% of the time, and the auditor's tests of that control find three control violations in a sample of 50, the sample is considered to be representative.
A) True
B) False
Answer: A
Terms: Sample considered to be representative
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
19) In practice, auditors do not know whether a sample is representative, even after all testing is complete.
A) True
B) False
Answer: A
Terms: Representative sample
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
20) One way to control sampling risk is to increase sample size.
A) True
B) False
Answer: A
Terms: Control sampling risk is with sample size
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
21) A sample of all items in a population will have a zero sampling risk.
A) True
B) False
Answer: A
Terms: Sample of all items in a population will have zero sampling risk
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
22) It is virtually impossible to reduce sampling risk to zero.
A) True
B) False
Answer: A
Terms: Sampling risk
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
Learning Objective 15-2
1) Which of the following is not true for nonstatistical sampling?
A) applies mathematical rules that allows auditors to quantify sampling risk
B) auditors select items for the sample that they believe would provide them the most information
C) reach conclusion about the population on a judgmental sample
D) often called judgmental sampling
Answer: A
Terms: Nonstatistical sampling
Diff: Easy
Objective: LO 15-2
AACSB: Reflective thinking skills
2) When the auditor goes through a population and selects items using nonprobalistic selection methods, without regard to their size, source, or other distinguishing characteristics, it is called:
A) block sample selection.
B) haphazard selection.
C) systematic sample selection.
D) statistical selection.
Answer: B
Terms: Nonprobabilistic selection methods
Diff: Easy
Objective: LO 15-2
AACSB: Reflective thinking skills
3) When auditors wish to evaluate a sample statistically, an acceptable selection method is:
A) systematic sample selection.
B) judgmental selection.
C) haphazard selection.
D) block sample selection.
Answer: A
Terms: Sample statistically
Diff: Easy
Objective: LO 15-2
AACSB: Reflective thinking skills
4) Which of the following statement is most correct with concerning the quantification of sampling risk?
A) Sampling risk cannot be quantified.
B) Sampling risk can be quantified only when non-probabilistic selection techniques are used to select the sample.
C) Sampling risk can be quantified only when probabilistic selection techniques are used to select the sample.
D) None of the above.
Answer: C
Terms: Quantification of sampling risk
Diff: Easy
Objective: LO 15-2
AACSB: Reflective thinking skills
5) The auditor may use which of the following criteria when using the directed sample selection technique?
A) Items most likely to contain misstatements.
B) Items containing selected population characteristics.
C) Large dollar coverage.
D) Any of the above.
Answer: D
Terms: Criteria with directed sample selection technique
Diff: Easy
Objective: LO 15-2
AACSB: Reflective thinking skills
6) Which of the following statements is most correct with respect to the evaluation of non-probabilistic sample results?
A) It is acceptable to make non-probabilistic evaluations only when probabilistic sample selection is used.
B) It is acceptable to make non-probabilistic evaluations only if the auditor cannot quantify sampling risk.
C) It is never acceptable to evaluate a non-probabilistic sample using statistical methods.
D) All of the above are correct.
Answer: C
Terms: Evaluation of non-probabilistic sample results
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
7) Which of the following statements is a valid criticism of non-statistical sampling?
A) Many audit tests, such as footing of journals, must be performed outside a statistical sampling context.
B) The cost of performing random selection or testing often exceeds the benefits.
C) Non-statistical sampling does not differ substantially from statistical sampling methods.
D) Conclusions may be drawn in more precise ways when using statistical sampling methods.
Answer: D
Terms: Criticism of non-statistical sampling
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
8) Which of the following statements is not correct regarding probabilistic and non-probabilistic sample selection?
A) In probabilistic selection, every population item has a known chance of being selected.
B) It is not acceptable to make non-probabilistic evaluations using probabilistic selection.
C) Probabilistic selection is required for all statistical sampling methods.
D) Both methods are acceptable and commonly used.
Answer: B
Terms: Probabilistic and non-probabilistic sample selection
Diff: Challenging
Objective: LO 15-2
AACSB: Reflective thinking skills
9) Non-probabilistic selection methods are not based on mathematical probabilities; therefore:
A) the extent to which a sample is representative of the population may be difficult to determine.
B) they are discouraged by the AICPA.
C) they are not allowed by the Statements on Auditing Standards.
D) they are not as effective as statistical sampling.
Answer: A
Terms: Non-probabilistic selection methods
Diff: Challenging
Objective: LO 15-2
AACSB: Reflective thinking skills
10) Which of the following statements regarding block sampling is least likely to be true?
A) Block sampling is the selection of several items in sequence.
B) It is acceptable to use block sampling for tests of transactions only if a reasonable number of blocks is used.
C) Only one block should be selected to increase the probability of a representative sample.
D) Once the first item in the block is selected, the remainder of the block is chosen automatically.
Answer: C
Terms: Block sampling
Diff: Challenging
Objective: LO 15-2
AACSB: Reflective thinking skills
11) An advantage of using statistical sampling techniques is that such techniques:
A) mathematically measure risk.
B) eliminate the need for judgmental decisions.
C) define the values of precision and reliability required to provide audit satisfaction.
D) have been established in the courts to be superior to judgmental sampling.
Answer: A
Terms: Advantage of using statistical sampling techniques
Diff: Challenging
Objective: LO 15-2
AACSB: Reflective thinking skills
12) Auditors who prefer statistical to nonstatistical sampling believe that the principal advantage of statistical sampling flows from its ability to:
A) quantify sampling risk.
B) promote a more legally defensible procedural approach.
C) define the precision required to provide audit satisfaction.
D) establish conclusive audit evidence with decreased audit effort.
Answer: A
Terms: Advantage of statistical sampling over nonstatistical sampling
Diff: Challenging
Objective: LO 15-2
AACSB: Reflective thinking skills
13) Describe the differences between statistical and nonstatistical sampling in terms of (1) the sample selection methods used, and (2) quantification of sampling risk.
Answer: Nonstatistical sampling differs from statistical sampling in that non-probabilistic sampling can be used for the former but not the latter. In addition, sampling risk can be quantified when using statistical sampling but not when using nonstatistical sampling.
Terms: Differences between statistical and nonstatistical sampling applying sample selection methods and quantification of sampling risk
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
14) You are designing the audit plan for Mathews & Company. You are a strong proponent for statistical sampling over nonstatistical sampling. Make your case.
Answer:
• More efficient samples
• Quantifies sampling risk
• Improved correlation between the sample and the population
Terms: Statistical sampling vs. nonstatistical sampling
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
15) Directed sample selection is the selection of each item in the sample based on some judgment criteria established by the auditor. Discuss three commonly used criteria.
Answer: Commonly-used criteria used in directed sample selection are:
• Items most likely to contain misstatements; for example, unusual or complex transactions, overdue receivables.
• Items containing selected population characteristics, such as transactions selected from each month during the year or from each location.
• Large dollar coverage in which the auditor focuses on selecting the relatively large items in the population for testing.
Terms: Directed sample selection approaches
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
16) It is equally acceptable under professional auditing standards for auditors to use either statistical or nonstatistical sampling methods.
A) True
B) False
Answer: A
Terms: Equally acceptable to use statistical or nonstatistical sampling methods
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
17) When using nonstatistical sampling, the sample must be a probabilistic one.
A) True
B) False
Answer: B
Terms: Nonstatistical sampling; sample must be probabilistic
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
18) The use of haphazard sample selection is encouraged under professional auditing standards.
A) True
B) False
Answer: B
Terms: Haphazard sample selection
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
19) Directed sample selection, block sample selection, and haphazard sample selection are three types of probabilistic sample selection methods.
A) True
B) False
Answer: B
Terms: Probabilistic sample selections; Directed sample selection, block sample selection and haphazard selections
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
Learning Objective 15-3
1) A sample in which every possible combination of items in the population has an equal chance of constituting the sample is a:
A) random sample.
B) statistical sample.
C) judgment sample.
D) representative sample.
Answer: A
Terms: Sample in which every possible combination has equal chance of constituting sample
Diff: Easy
Objective: LO 15-3
AACSB: Reflective thinking skills
2) The process which requires the calculation of an interval and then selects the items based on the size of the interval is:
A) statistical sampling.
B) random sample selection.
C) systematic sample selection.
D) computerized sample selection.
Answer: C
Terms: Process which requires calculation of an interval
Diff: Easy
Objective: LO 15-3
AACSB: Reflective thinking skills
3) In systematic sample selection, the population size is divided by the number of sample items desired in order to determine the:
A) sampling interval.
B) tolerable exception rate.
C) computed upper exceptions rate.
D) mean.
Answer: A
Terms: Systematic sample selection
Diff: Easy
Objective: LO 15-3
AACSB: Reflective thinking skills
4) Which of the following methods of sample selection is appropriately used when selecting a random sample?
A)
Auditor's judgmental selection of items
Use of computer-generated random numbers
Use of random number ables Yes
No
Yes
B)
Auditor's judgmental selection of items
Use of computer-generated random numbers
Use of random number ables No
Yes
Yes
C)
Auditor's judgmental selection of items
Use of computer-generated random numbers
Use of random number ables Yes
No
No
D)
Auditor's judgmental selection of items
Use of computer-generated random numbers
Use of random number ables No
Yes
No
Answer: B
Terms: Methods of sample selection in selecting a random sampl
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
5) Correspondence is established between the random number table and the population by:
A) identifying each item in the population with a unique number.
B) deciding the number of digits to use in the random number table and their association with the population numbering system.
C) defining which digits the auditor uses in a column and the method of reading the table.
D) selecting a random starting point on the table.
Answer: B
Terms: Correspondence between random number table and population
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
6) Which of the following statements is not correct?
A) It is acceptable to pick a starting point on a random number table by using a "blind stab" method.
B) It is impossible to draw a six-digit random number from a table that is separated into columns of five digits.
C) The only reason for selecting a random starting point on a random number table is to eliminate the predictability of the sample.
D) When selecting a three-digit number from a table that is separated into columns of five digits, it is permissible to use the first three digits, the middle three digits, or the last three digits.
Answer: B
Terms: Random number tables
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
7) The advantage of systematic sample selection is that:
A) it is easy to use.
B) there is limited possibility of it being biased.
C) it is unnecessary to determine if the population is arranged randomly.
D) it automatically selects items material to the financial statements.
Answer: A
Terms: Advantage of systematic sample selection
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
8) In performing a review of a client's cash disbursements, an auditor uses systematic sample selection with a random start. The primary disadvantage of this technique is population items:
A) may occur twice in the sample.
B) must be reordered in a systematic pattern before the sample can be drawn.
C) may occur in a systematic pattern, thus negating the randomness of the sample.
D) must be replaced in the population after sampling to permit valid statistical inference.
Answer: C
Terms: Disadvantage of systematic sample selection with random start
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
9) Which of the following is an advantage of systematic sample selection over random number sampling?
A) It provides a stronger basis for statistical conclusions.
B) It enables the auditor to use the more efficient "sampling with replacement" tables.
C) There may be correlation between the location of items in the population, the feature of sampling interest, and the sampling interval.
D) It does not require establishment of correspondence between random numbers and items in the population.
Answer: D
Terms: Advantage of systematic sample selection over random number sampling
Diff: Challenging
Objective: LO 15-3
AACSB: Reflective thinking skills
10) What is the key advantage and disadvantage associated with systematic sample selection? How must auditors address this disadvantage?
Answer: The key advantage is its ease of use. Generally, systematic samples are easily drawn from the population and supporting documentation is easily developed. The key disadvantage is the potential for bias. Once the first item in the sample is selected, all other items are chosen automatically. Auditors should be careful to consider any potential pattern in the data prior to selecting their sample to ensure that their selection considers the possible bias.
Terms: Systematic sample selection
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
11) Describe each of the four types of sample selection methods commonly associated with statistical audit sampling.
Answer: Four types of sample selection methods commonly associated with statistical audit sampling are:
• Simple random sample selection. Every possible combination of elements in the population has an equal chance of constituting the sample.
• Systematic sample selection. A probabilistic method of sampling in which the auditor calculates an interval (the population size divided by the number of sample items desired) and selects the items for the sample based on the size of the interval and a randomly selected number between zero and the interval size.
• Probability proportional to size sample selection. The probability of selecting any individual population item is proportional to its recorded amount.
• Stratified sample selection. A probabilistic method of sampling in which the population is divided into subpopulations, and sub-samples are taken from each of the subpopulations.
Terms: Types of sample selection methods associated with statistical audit sampling
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
12) When selecting a sample, random numbers may be obtained either with replacement or without replacement. Although both selection methods are theoretically sound, auditors rarely use replacement sampling.
A) True
B) False
Answer: A
Terms: Selecting same with random numbers
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
13) Although systematic sample selection is easy to use, its primary disadvantage is that it is not a probabilistic sampling method.
A) True
B) False
Answer: B
Terms: Systematic sample selection; probabilistic sampling method
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
Learning Objective 15-4
1) Which of the following occurrences would be least likely to warrant further audit attention for the auditor?
A) Deviations from client's established control procedures.
B) Deviations from client's budgeted values.
C) Monetary misstatements in populations of transaction data.
D) Monetary misstatements in populations of account balance details.
Answer: B
Terms: Warrant further audit attention for auditor
Diff: Easy
Objective: LO 15-4
AACSB: Reflective thinking skills
2) What types of exceptions are auditors most concerned with when evaluating populations of accounting data?
Answer: There are three types of exceptions that auditors are generally concerned with when evaluating populations of accounting data. They are:
1. Deviations from client's established controls.
2. Monetary misstatements in populations of transaction data.
3. Monetary misstatements in populations of account balance details.
Terms: Types of exceptions and concern when evaluating populations of accounting data
Diff: Moderate
Objective: LO 15-4
AACSB: Reflective thinking skills
3) The auditor may estimate the "estimated population exception rate" by taking a small preliminary sample from the current year's data or by using the prior year's experience with the client.
A) True
B) False
Answer: A
Terms: Estimated population exception rate
Diff: Challenging
Objective: LO 15-4
AACSB: Reflective thinking skills
4) When a small preliminary sample is used to estimate the population exception rate, it (the preliminary sample) cannot be included in the ultimate sample.
A) True
B) False
Answer: B
Terms: Population exception rate; Small preliminary sample
Diff: Challenging
Objective: LO 15-4
AACSB: Reflective thinking skills
Learning Objective 15-5
1) The risk which the auditor is willing to take in accepting a control as being effective when the true population exception rate is greater than a tolerable rate is the:
A) finite correction factor.
B) tolerable exception rate.
C) acceptable risk of assessing control risk too low.
D) estimated population exception rate.
Answer: C
Terms: Risk auditor is willing to take in accepting a control as being effective
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
2) The exception rate the auditor will permit in the population and still be willing to reduce the assessed level of control risk is called the:
A) tolerable exception rate.
B) estimated population exception rate.
C) acceptable risk of overreliance.
D) sample exception rate.
Answer: A
Terms: Exception rate auditor will permit and still be willing to reduce assessed level of control risk
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
3) If the auditor decides to assess control risk at the moderate level in a private company audit, when in previous years the auditor set control risk at the maximum level, then tests of controls for the current year would be:
A) increased in number.
B) reduced in number.
C) not performed.
D) unchanged from prior planned settings.
Answer: A
Terms: Assess control risk
Diff: Easy
Objective: LO 15-5
AACSB: Analytic skills
4) When the computed upper exception rate is greater than the tolerable exception rate, it is necessary for the auditor to take specific action. Which of the following courses of action would be most difficult to justify?
A) Reduce the tolerable exception rate so as to accept the sample results.
B) Expand the sample size and perform more tests.
C) Revise the assessed control risk.
D) Write a letter to management which outlines the control deficiencies.
Answer: A
Terms: Computed upper exception rate is greater than tolerable exception rate
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
5) Which of the following would have the least impact in determining sample size for tests of controls?
A) Expected population exception rate.
B) Risk of assessing control risk too low.
C) Tolerable exception rate.
D) Population size.
Answer: D
Terms: Least impact on determining sample size for tests of controls
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
6) Which of the following represents the best description of the tolerable exception?
A) The highest exception rate the auditor will permit in the control being tested and still conclude it is operating effectively.
B) The highest exception rate the auditor expects to find in the population.
C) The number of exceptions found in the sample divided by the sample size.
D) The highest estimated exception rate in a population at a given ARACR.
Answer: A
Terms: Tolerable exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
7) Which of the following is most correct when using audit sampling for exception rates?
A) auditor is concerned with the lowest rate
B) auditor is concerned with the highest rate
C) auditor is concerned with the average on previous audits
D) doesn't impact the auditors decision
Answer: B
Terms: Auditing sampling for exception rates
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
8) The highest estimated exception rate in the population at a particular acceptable risk of assessing control risk too low is:
A) the upper exception rate.
B) estimated population exception rate.
C) the computed upper exception rate.
D) the tolerable exception rate.
Answer: C
Terms: Highest estimated exception rate in population; Acceptable risk of assessing control risk too low
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
9) You are testing controls over accounts receivable and are determining if the appropriate credit authorization was made by an authorized person. Your sample size is 40 and your computed upper deviation rate is 5%. On the first 10 items sampled you have found 8 deviations. You would most likely:
A) continue with the other 30 items.
B) revisit the sample size calculations.
C) increase the tolerable deviation rate.
D) stop the test and re-set control risk for accounts receivable.
Answer: D
Terms: Sample size, computed upper deviation and actual deviations
Diff: Moderate
Objective: LO 15-5
AACSB: Analytic skills
10) The exception rate that the auditor will permit in the population and still be willing to use the preliminary control risk assessment is called the:
A) acceptable exception rate.
B) estimated population exception rate.
C) sample exception rate.
D) tolerable exception rate.
Answer: D
Terms: Exception rate; Preliminary control risk assessment
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
11) The auditor's best estimate of the population exception rate is the:
A) current year's sample exception rate.
B) tolerable exception rate.
C) prior year's sample exception rate.
D) computed upper exception rate.
Answer: A
Terms: Estimate of population exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
12) Place the following steps in their proper order:
1. Analyze exceptions
2. Select the sample
3. Define attributes and exception conditions
4. State the objectives of the audit test
5. Specify the tolerable exception rate
A) 1, 3, 2, 4, 5.
B) 4, 3, 1, 2, 5.
C) 4, 3, 5, 2, 1.
D) 1, 2, 3, 4, 5.
Answer: C
Terms: Auditing sampling steps
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
13) If an auditor judgmentally selects a sample of one hundred items from a population and finds two exceptions, the auditor:
A) can conclude that the sample exception rate is 2%.
B) can conclude that the population exception rate is 2%.
C) can calculate the highest exception rate expected in the population.
D) cannot make any conclusions about either the sample or the population.
Answer: A
Terms: Sample selected from population and found exceptions
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
14) In testing controls, an overreliance on internal controls that reduces substantive tests and increases the likelihood of not detecting a material misstatement occurs because:
A) true deviation in the population was less than the sample.
B) true deviation in the population was greater than the sample.
C) auditor judgment was flawed.
D) it is inherent in the audit risk model.
Answer: B
Terms: Testing controls; Overreliance on internal controls
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
15) You are determining the significance of the following: you set a 5% risk of assessing control risk to low and your computation of the upper deviation risk is 7%. What could you conclude?
A) There is a 95% chance the deviation rate is the population is less than 5%.
B) There is a 5% chance the deviation rate in the population is less than 7%.
C) There is a 95% chance the deviation rate in the population exceeds 95%.
D) There is a 5% chance the deviation rate in the population exceeds 7%.
Answer: D
Terms: Risk of assessing control risk low and computation of upper deviation risk
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
16) Which of the following is the exception rate that the auditor expects to find before testing?
A) Sample exception rate.
B) Estimated population exception rate.
C) Computed exception rate.
D) Tolerable exception rate.
Answer: B
Terms: Exception rate auditor expects to find before testing
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
17) Which of the following is not a term related to evaluating results in audit sampling until after a sample is tested and evaluated?
A) Sample exception rate.
B) Estimated population exception rate.
C) Computed upper exception rate.
D) Exception.
Answer: B
Terms: Term not related to evaluating results in audit sampling
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
18) The relationship of tolerable exception rate (TER) to sample size is:
A) direct (larger TER = larger sample).
B) inverse (larger TER = smaller sample).
C) variable (sometimes larger, sometimes smaller).
D) not determinable.
Answer: B
Terms: Relationship of tolerable exception rate (TER) to sample size
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
19) Which of the following must be set prior to testing a sample?
A) Sample exception rate.
B) Achieved upper precision limit.
C) Computed exception rate.
D) Tolerable exception rate.
Answer: D
Terms: Set prior to testing sample
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
20) The relationship of acceptable risk of accessing control risk too low (ARACR) to sample size is:
A) variable (sometimes larger, sometimes smaller).
B) direct (larger ARACR = larger sample).
C) inverse (larger ARACR = smaller sample).
D) nonexistent.
Answer: C
Terms: Relationship of acceptable risk of assessing control risk too low (ARACR) to sample size
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
21) The sample exception rate equals:
A) the number of exceptions in the population divided by the sample size.
B) the number of items in the population multiplied by the number of exceptions in the sample.
C) the number of exceptions in the sample divided by the sample size.
D) the number of exceptions in the population divided by the population size.
Answer: C
Terms: Sample exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
22) Before the population can be considered acceptable based on the acceptable risk of assessing control risk too low, the computed upper exception rate must be:
A) greater than or equal to the tolerable exception rate.
B) greater than the tolerable exception rate.
C) less than or equal to the tolerable exception rate.
D) less than the tolerable exception rate.
Answer: C
Terms: Population considered acceptable based on acceptable risk of assessing control risk too low; Upper exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
23) An auditor uses statistical sampling for attributes in internal control testing. She would most likely reduce the planned reliable on the control tested when:
A) the sample deviation rate plus the adjustment for sampling risk exceeded the tolerable deviation rate.
B) the sample deviation rate plus the adjustment for sampling risk equaled the tolerable deviation rate.
C) the tolerable deviation rate less the adjustment for sampling risk exceeded the expected population deviation rate.
D) the tolerable deviation rate plus the adjustment for sampling risk was less than the expected population deviation rate.
Answer: A
Terms: Statistical sampling for attributes; Reduce planned reliance on control tested
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
24) The acceptable risk of assessing control risk too low is:
A)
The risk that the auditor is willing to take of accepting a control as ineffective when it is effective The risk that the auditor is willing to take of accepting a control as effective when it is ineffective
Yes
Yes
B)
The risk that the auditor is willing to take of accepting a control as ineffective when it is effective The risk that the auditor is willing to take of accepting a control as effective when it is ineffective
No
No
C)
The risk that the auditor is willing to take of accepting a control as ineffective when it is effective The risk that the auditor is willing to take of accepting a control as effective when it is ineffective
Yes
No
D)
The risk that the auditor is willing to take of accepting a control as ineffective when it is effective The risk that the auditor is willing to take of accepting a control as effective when it is ineffective
No
Yes
Answer: D
Terms: Acceptable risk of assessing control risk too low
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
25) When using statistical sampling, the auditor would most likely require a smaller sample if the:
A) population increases.
B) desired reliability decreases.
C) desired precision interval narrows.
D) expected exception rate increases.
Answer: B
Terms: Statistical sampling; Auditor requires smaller sample
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
26) Whenever auditors use sampling, they risk making incorrect conclusions about the population. For audit sampling of tests of transactions this risk is known as:
A) acceptable risk of assessing control risk too low.
B) acceptable risk of assessing transaction testing as too low.
C) risk that the sample is not representative of the population.
D) risk that the sample conclusions cannot be useful because of non-probability sampling.
Answer: A
Terms: Sampling and the risk of making incorrect conclusions about the population
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
27) When deciding on the acceptable risk of assessing control risk too low, the auditor needs to:
A) rely on his/her professional judgment.
B) err on the side of conservatism.
C) consult the professional standards.
D) follow SEC guidelines.
Answer: A
Terms: Acceptable risk of assessing control risk too low
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
28) The difference between the tolerable exception rate and the estimated population exception rate is called:
A) accuracy of the initial sample estimate.
B) inflation factor of the initial sample estimate.
C) precision of the initial sample estimate.
D) reliability of the initial sample estimate.
Answer: C
Terms: Difference between tolerable exception and estimated population exception rate
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
29) If the result obtained from a particular sample for control and substantive tests of transactions is critical to the formation of an audit opinion, which of the following is the most important to the auditor in concluding of the appropriateness and sufficiency of evidence gathered?
A) Acceptable risk of assessing control risk too low.
B) Estimated population exception rate.
C) Tolerable exception rate.
D) Size of the population.
Answer: A
Terms: Control and substantive tests of transactions; Important in concluding appropriateness and sufficiency of evidence
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
30) The tolerable rate of exceptions for tests of controls is generally:
A) lower than the expected rate of errors in the related accounting records.
B) higher than the expected rate of errors in the related accounting records.
C) identical to the expected rate of errors in the related accounting records.
D) unrelated to the expected rate of errors in the related accounting records.
Answer: B
Terms: Tolerable rate of exceptions for tests of controls
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
31) Which of the following results in a larger sample size?
A) decrease the desired confidence level and decrease the tolerable deviation rate
B) increase the desired confidence level and decrease the tolerable deviation rate
C) decrease the desired confidence level and increase the tolerable deviation rate
D) increase the desired confidence level and increase the tolerable deviation rate
Answer: B
Terms: Results in larger sample size
Diff: Moderate
Objective: LO 15-1 and LO 15-5
AACSB: Reflective thinking skills
32) An auditor plans to examine a sample of 40 canceled checks for a countersignature which is prescribed in the client's control procedures manual. Two of the checks in sample cannot be located by the company or the auditor. The auditor would most likely:
A) treat the missing checks as a deviation when evaluating the results of the sample.
B) draw a conclusion on a sample size of 38.
C) substitute two more checks to get to a sample size of 40.
D) recalculate the sample excluding the original 40 checks.
Answer: A
Terms: Missing canceled checks in population
Diff: Moderate
Objective: LO 15-4 and LO 15-5
AACSB: Analytic skills
Topic: Public
33) You are determining the appropriate sample size to test accounts receivable. What three factors are the most important to consider?
Answer:
1. Tolerable exception rate (TER)
2. Acceptable risk of assessing control risk too low (ARACR)
3. Estimated population exception rate (EPER)
Terms: Factors to determine appropriate sample size
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
34) Explain the effect on sample size of increasing each of the following: (1) tolerable exception rate, (2) estimated population exception rate, (3) acceptable risk of assessing control risk too low, and (4) population size.
Answer: The tolerable exception rate and acceptable risk of assessing control risk too low are inversely related to sample size; that is, as TER or ARACR increase, sample size will decrease. The estimated population exception rate and the population size are directly related to sample size; that is, as EPER increases, sample size will also increase, and as population size increases, sample size may slightly increase.
Terms: Effects on sample size when increasing tolerable exception, estimated population exception rate, acceptable risk of assessing control risk too low, and population size
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
35) The prior year's sample exception rate is the auditor's best estimate of the exception rate in the population for the current year.
A) True
B) False
Answer: B
Terms: Sample exception rate
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
36) The tolerable exception rate is the rate that the auditor will permit in the population and still be willing to conclude a control is effective.
A) True
B) False
Answer: A
Terms: Tolerable exception rate
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
37) The only way to know with certainty whether a sample is representative is to subsequently audit the entire population.
A) True
B) False
Answer: A
Terms: Know with certainty whether sample is representative is to audit entire population
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
38) Acceptable risk of assessing control risk too low is the risk that the auditor is willing to take in accepting a control as effective when the true population exception rate is greater than the estimated population exception rate.
A) True
B) False
Answer: B
Terms: Acceptable risk of assessing control risk
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
39) ARACR is normally lower for a public company audit than a private company audit.
A) True
B) False
Answer: A
Terms: ARACR - Acceptable risk of assessing control risk
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
Topic: Public
40) The conjoined sample exception rate is the auditor's "best estimate" of the actual exception rate in the entire population.
A) True
B) False
Answer: B
Terms: Sample exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
41) When the computed upper exception rate is greater than the tolerable exception rate in attributes sampling, one possible appropriate course of action is to increase sample size.
A) True
B) False
Answer: A
Terms: Computed upper exception rate and tolerable exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
42) Tolerable exception rate (TER) is inversely related to sample size.
A) True
B) False
Answer: A
Terms: Tolerable exception rate and sample size relationship
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
43) The higher the assessed control risk, the lower will be the acceptable risk of assessing control risk too low.
A) True
B) False
Answer: B
Terms: Control risk assessment
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
44) In nonstatistical sampling, the calculated sampling error is the difference between the tolerable exception rate and the sample exception rate.
A) True
B) False
Answer: A
Terms: Nonstatistical sampling; Calculated sampling error; Difference between tolerable exception rate and sample exception rate
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
Learning Objective 15-6
1) Rodgers CPA believes that the rate of client billing errors is 4% and has established a tolerable deviation rate of 6%. In auditing client invoices Rodgers should use:
A) stratified sampling.
B) classical sampling.
C) proportional sampling.
D) attributes sampling.
Answer: D
Terms: Auditing client invoices
Diff: Easy
Objective: LO 15-6
AACSB: Analytic skills
2) Attributes sampling would be an appropriate method to use on which one of the following procedures in an audit program?
A) Review sales transactions for large and unreasonable amounts.
B) Observe whether the duties of the accounts receivable clerk are separate from handling cash.
C) Examine a sample of duplicate sales invoices for credit approval by the credit manager.
D) Review the aged schedule of accounts receivable to determine if receivables from officers are included.
Answer: C
Terms: Attributes sampling
Diff: Easy
Objective: LO 15-6
AACSB: Reflective thinking skills
3) As the auditor you are assessing the proper sample size to use in testing controls. When using attributes sampling which of the following is most correct?
A) A 10% change in population size will have the least effect on sample size.
B) A 10% change in the tolerable deviation rate will have the least effect on sample size.
C) A 10% change in the expected deviation rate will have the least effect on sample size.
D) A 10% change in the tolerable will have the least effect on sample size
Answer: A
Terms: Attributes sampling
Diff: Moderate
Objective: LO 15-6
AACSB: Reflective thinking skills
4) In attributes sampling, an estimate of the expected population exception rate is necessary to plan the sample size. The relationship of expected population exception rate (EPER) to sample size is:
A) direct (small EPER = small sample).
B) inverse (small EPER = large sample).
C) a variable (sometimes small, sometimes large) dependent on other factors present.
D) indeterminate.
Answer: A
Terms: Attributes sampling; Expected population exception rate and sample size
Diff: Moderate
Objective: LO 15-6
AACSB: Reflective thinking skills
5) If an auditor, planning to use statistical sampling, is concerned with the number of a client's sales invoices that contain mathematical errors, the auditor would most likely utilize which sampling technique?
A) Random sampling with replacement
B) Sampling for attributes
C) Ssampling for variables
D) Stratified random sampling
Answer: B
Terms: Statistical sampling; Number of invoices containing mathematical errors
Diff: Challenging
Objective: LO 15-6
AACSB: Reflective thinking skills
6) For which of the following audit procedures would audit sampling not be appropriate?
A) Review sales transactions for large and unusual amounts.
B) Examine a sample of duplicate sales invoices for credit approval.
C) Compare the quantity on duplicate sales invoices with the quantity on related shipping documents.
D) Audit sampling is appropriate for each of the above procedures.
Answer: A
Terms: Audit sampling not appropriate for which audit procedure
Diff: Moderate
Objective: LO 15-5 and LO 15-6
AACSB: Reflective thinking skills
7) Match eight of the terms (a-k) with the definitions provided below (1-8):
a. Haphazard selection
b. Attributes sampling
c. Block sample selection
d. Judgmental sampling
e. Non-probabilistic sample selection
f. Probabilistic sample selection
g. Random sample
h. Representative sample
i. Statistical sampling
j. Systematic sample selection
k. Sampling distribution ________ 1. The use of mathematical measurement techniques to calculate formal statistical results and quantify sampling risk.
________ 2. A non-probabilistic method of sample selection in which items are selected in measured sequences.
________ 3. A sample whose characteristics are the same as those of the population.
________ 4. A statistical, probabilistic method of sample evaluation that results in an estimate of the proportion of items in a population containing a characteristic of interest.
________ 5. A non-probabilistic method of sample selection in which items are chosen without regard to their size, source, or other distinguishing characteristics.
________ 6. An auditor selects items such that each population item has a known probability of being included in the sample.
________ 7. A frequency distribution of the results of all possible samples of a specified size that could be obtained from a population containing some specific parameters.
________ 8. A sample in which every possible combination of elements in the population has an equal chance of constituting the sample.
Answer:
1. i
2. c
3. h
4. b
5. a
6. f
7. k
8. g
Terms: Haphazard selection; Attributes sampling; Block sample selection; Probabilistic sample selection; Random sample; Representative sample; Statistical sampling; Sampling distribution
Diff: Moderate
Objective: LO 15-1, LO 15-2, LO 15-3, and LO 15-6
AACSB: Reflective thinking skills
8) There are 14 steps to attributes sampling, divided into three sections: plan the sample, select the sample and perform the audit procedures, and evaluate the results. Discuss the three steps that comprise the "evaluate the results" section.
Answer: The steps that comprise the "evaluate the results" section in attributes sampling are:
1. Generalize from the sample to the population. Tables can be used to determine the upper precision limit (computed upper exception rate) based on the acceptable risk of assessing control risk too low and the sample exception rate.
2. Analyze exceptions. In this step, the auditor should analyze individual exceptions to determine the breakdown in the internal controls that caused them.
3. Decide the acceptability of the population. In the final step, the auditor compares the computed upper exception rate with the tolerable exception rate. If the computed upper exception rate is less than or equal to the tolerable exception rate, then the population is considered acceptable.
Terms: Steps that comprise evaluate the results section of 14 steps to attributes sampling
Diff: Challenging
Objective: LO 15-6
AACSB: Reflective thinking skills
9) There are 14 steps to attributes sampling, divided into three sections: plan the sample, select the sample and perform the audit procedures, and evaluate the results. In the planning section there are 9 steps, beginning with "state the audit objective" and ending with "determine the initial sample size". Name and discuss at least 3 steps between the ones listed above.
Answer: The steps that comprise the "plan the sample" section in attributes sampling are:
1. State the objectives of the audit test. Typically, in attributes sampling, the overall objective is to test the application of controls and determine whether transactions contain monetary misstatements.
2. Decide if audit sampling applies. Audit procedures involving documentation normally can be performed using sampling, whereas procedures involving observation, inquiry of the client, and analytical procedures are not suited to audit sampling.
3. Define attributes and exception conditions. In this step, the auditor carefully defines the attributes of interest and the conditions that constitute exceptions or errors.
4. Define the population. The population is the body of data about which the auditor wished to generalize, from which the sample must be drawn.
5. Define the sampling unit. In attributes sampling, the sampling unit is normally a document, identified by document numbers, or a transaction recorded in a journal.
6. Specify tolerable exception rate. This is the exception rate that the auditor will permit in the population and still be willing to rely on internal controls.
7. Specify acceptable risk of assessing control risk too low. This is the risk that the auditor is willing to take in accepting a control as effective when the true population exception rate is greater than the tolerable exception rate.
8. Estimate the population exception rate. This is the exception rate the auditor expects to find in the population before testing begins.
9. Determine the initial sample size. The initial sample size is determined from tables, based on values for the tolerable exception rate, acceptable risk of assessing control risk too low, and the estimated exception rate.
Terms: Steps in Plan the sample in attributes sampling
Diff: Challenging
Objective: LO 15-6
AACSB: Reflective thinking skills
Learning Objective 15-7
1) A principal advantage of statistical methods of attributes sampling over nonstatistical methods is that they provide a scientific basis for establishing the:
A) risk of assessing control risk too low.
B) tolerable exception rate.
C) expected population exception rate.
D) sample size.
Answer: D
Terms: Advantage of statistical methods of attributes sampling
Diff: Moderate
Objective: LO 15-7
AACSB: Reflective thinking skills
2) In using sampling distribution for attributes, which one of the following must be known to evaluate the sample results?
A) Estimated dollar value of the population.
B) Standard exception of the values in the population.
C) Actual exception rate of the attribute in the population.
D) Sample size.
Answer: D
Terms: Estimation sampling for attributes
Diff: Moderate
Objective: LO 15-7
AACSB: Reflective thinking skills
3) When audit procedures have been completed for an attributes sampling application, the auditor must generalize from the sample to the population. Which of the following statements would be incorrect regarding this process?
A) The auditor would use an attributes sampling table to determine the computed upper exception rate.
B) The computed upper exception rate is the highest exception rate in the population that the auditor is willing to accept.
C) It would be wrong for the auditor to conclude that the population exception rate is exactly the same as the sample exception rate.
D) In selecting the table corresponding to the risk of overreliance, it should be the same as the ARACR used for determining the initial sample size.
Answer: B
Terms: Attributes sampling application
Diff: Challenging
Objective: LO 15-7
AACSB: Reflective thinking skills
4) What is an auditor's evaluation of a statistical sample for attributes when a test of 100 documents results in four exceptions if the tolerable exception rate is 5%, the expected population exception rate is 3%, and the allowance for sampling risk is 2%?
A) Accept the sample results as support for planned reliance on the control because the tolerable rate less the allowance for sampling risk equals the expected population exception rate.
B) Modify planned reliance on the control because the sample exception rate plus the allowance for sampling risk exceeds the tolerable rate.
C) Modify planned reliance on the control because the tolerable rate plus the allowance for sampling risk exceeds the expected population exception rate.
D) Accept the sample results as support for planned reliance on the control because the sample deviation rate plus the allowance for sampling risk exceeds the tolerable rate.
Answer: B
Terms: Statistical sample for attributes; Tolerable exception rate, expected population exception rate and allowance for sampling risk
Diff: Challenging
Objective: LO 15-7
AACSB: Reflective thinking skills
5) In the evaluation of the results of an attributes sample, the fact that the exception rate in the sample was 2% rather than the estimated population exception rate of 4% would cause the computed upper exception rate to:
A) be less than the tolerable exception rate.
B) equal the tolerable exception rate.
C) exceed the tolerable exception rate.
D) cannot be determined from the information given.
Answer: A
Terms: Attributes sample; Exception rate in sample, estimated population exception rate, and computed upper exception rate
Diff: Challenging
Objective: LO 15-7
AACSB: Reflective thinking skills
6) If the size of the sample to be used in a test of attributes is not determined by using statistical concepts, but the sample is chosen in accordance with random selection procedures:
A) no inferences can be drawn from the sample.
B) the auditor has committed a nonsampling error.
C) the auditor may or may not achieve the tolerable exception rate at the acceptable risk of assessing control risk too low.
D) the auditor will have to evaluate results using the principles of discovery sampling.
Answer: C
Terms: Size of sample used in test of attributes
Diff: Challenging
Objective: LO 15-7
AACSB: Reflective thinking skills
Chapter 15 Audit Sampling for Tests of Controls and Substantive Tests of Transactions
Learning Objective 15-1
1) A sample in which the characteristics of the sample are the same as those of the population is a(n):
A) variables sample.
B) representative sample.
C) attributes sample.
D) random sample.
Answer: B
Terms: Sample in which characteristics of sample are same as population
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
2) When the auditor decides to select less than 100 percent of the population for testing, the auditor is said to use:
A) audit sampling.
B) representative sampling.
C) poor judgment.
D) estimation sampling.
Answer: A
Terms: Auditor selects less than 100 percent of population for testng
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
3) To determine if a sample is truly representative of the population, an auditor would be required to:
A) conduct multiple samples of the same population.
B) never use sampling because of the expense involved.
C) audit the entire population.
D) use systematic sample selection.
Answer: C
Terms: Sample truly representative of population
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
4) One of the ways to eliminate nonsampling risk is through:
A) proper supervision and instruction of the client's employees.
B) proper supervision and instruction of the audit team.
C) the use of attributes sampling rather than variables sampling.
D) controls which ensure that the sample drawn is random and representative.
Answer: B
Terms: Ways to eliminate nonsampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
5) Which one of the choices below is most correct regarding a cause of sampling risk?
A) ineffective use of audit procedures
B) testing less than the entire population
C) use of extensive tests of controls
D) the possibility that a properly-selected sample still may not be representative
Answer: B
Terms: Correct regarding sampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
6) An auditor can increase the likelihood that a sample is representative by using care in:
A)
Designing the sampling process
Designing the sample selection
Yes
Yes
B)
Designing the sampling process
Designing the sample selection
No
No
C)
Designing the sampling process
Designing the sample selection
Yes
No
D)
Designing the sampling process
Designing the sample selection
No
Yes
Answer: A
Terms: Increase likelihood that sample is representatigve
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
7) Which of the following is the risk that audit tests will not uncover existing exceptions in a sample?
A) Sampling risk
B) Nonsampling risk
C) Audit risk
D) Detection risk
Answer: B
Terms: Risk that audit tests will not uncover existing exceptions
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
8) Which of the following is the risk that an auditor will reach an incorrect conclusion because a sample is not representative of the population?
A) Sampling risk
B) Nonsampling risk
C) Audit risk
D) Detection risk
Answer: A
Terms: Risk auditor will reach an incorrect conclusion
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
9) Sampling risk may be controlled by:
A)
Adjusting the sample size
Always using random sampling
Yes
Yes
B)
Adjusting the sample size
Always using random sampling
No
No
C)
Adjusting the sample size
Always using random sampling
Yes
No
D)
Adjusting the sample size
Always using random sampling
No
Yes
Answer: C
Terms: Sampling risk controlled by
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
10) Which of the following statements is most correct?
A) A sample of all items of a population will eliminate sampling risk, but increase nonsampling risk.
B) The use of an appropriate sample selection technique ensures a representative sample.
C) The auditor's failure to recognize an exception is a significant cause of sampling risk.
D) The use of inappropriate audit procedures is a significant cause of nonsampling risk.
Answer: D
Terms: Sample selection; Sampling and nonsampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
11) Which of the following statements best expresses the impact that the performance of audit procedures has on statistical vs. nonstatistical sampling?
A) Audit procedures on the sample item will vary as a result of using either statistical or nonstatistical sampling.
B) The audit procedures will be the same for either statistical or nonstatistical sampling but they must be performed differently for each.
C) Statistical sampling requires quantitative audit procedures, whereas nonstatistical sampling requires judgmental audit procedures.
D) Audit procedures on the sample item will not vary as a result of using either statistical or nonstatistical sampling.
Answer: D
Terms: Statistical vs. nonstatistical sampling
Diff: Challenging
Objective: LO 15-1
AACSB: Reflective thinking skills
12) Briefly explain why auditors utilize audit sampling.
Answer: Auditors use sampling techniques primarily because it is generally impractical to audit all transactions or balances. Consequently, auditors must design strategies to select items from the population that are likely to be representative of the remaining unaudited population items. In addition, auditors often use sampling techniques because of economic realities. That is, clients generally do not want to incur the substantial fees associated with auditing every transaction or balance.
Terms: Audit sampling
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
13) Discuss what is meant by "sampling risk" and "nonsampling risk".
Answer: Sampling risk occurs when the sample is not representative of the population; that is, the characteristics of interest in the sample are not the same as those in the population.
Nonsampling risk occurs when audit tests do not uncover existing exceptions in the sample.
Terms: Sampling and nonsampling risks
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
14) Discuss what is meant by "nonsampling risk."
Answer: Nonsampling risk occurs when audit tests do not uncover existing exceptions in the sample.
Terms: Nonsampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
15) Discuss two causes of nonsampling risk. Also discuss ways the auditor can control nonsampling risk.
Answer: The two causes of nonsampling risk are (1) the auditor's failure to recognize exceptions and (2) inappropriate or ineffective audit procedures. The auditor can control nonsampling risk through careful design of audit procedures and through proper instruction, supervision, and review.
Terms: Nonsampling risk
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
16) Sampling risk results from the auditor's failure to recognize exceptions in transaction data.
A) True
B) False
Answer: B
Terms: Sampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
17) Even when nonsampling risk is zero, there is always a possibility that a sample is not representative of the population.
A) True
B) False
Answer: A
Terms: Nonsampling risk
Diff: Easy
Objective: LO 15-1
AACSB: Reflective thinking skills
18) If a particular internal control is not followed by the client exactly 6% of the time, and the auditor's tests of that control find three control violations in a sample of 50, the sample is considered to be representative.
A) True
B) False
Answer: A
Terms: Sample considered to be representative
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
19) In practice, auditors do not know whether a sample is representative, even after all testing is complete.
A) True
B) False
Answer: A
Terms: Representative sample
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
20) One way to control sampling risk is to increase sample size.
A) True
B) False
Answer: A
Terms: Control sampling risk is with sample size
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
21) A sample of all items in a population will have a zero sampling risk.
A) True
B) False
Answer: A
Terms: Sample of all items in a population will have zero sampling risk
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
22) It is virtually impossible to reduce sampling risk to zero.
A) True
B) False
Answer: A
Terms: Sampling risk
Diff: Moderate
Objective: LO 15-1
AACSB: Reflective thinking skills
Learning Objective 15-2
1) Which of the following is not true for nonstatistical sampling?
A) applies mathematical rules that allows auditors to quantify sampling risk
B) auditors select items for the sample that they believe would provide them the most information
C) reach conclusion about the population on a judgmental sample
D) often called judgmental sampling
Answer: A
Terms: Nonstatistical sampling
Diff: Easy
Objective: LO 15-2
AACSB: Reflective thinking skills
2) When the auditor goes through a population and selects items using nonprobalistic selection methods, without regard to their size, source, or other distinguishing characteristics, it is called:
A) block sample selection.
B) haphazard selection.
C) systematic sample selection.
D) statistical selection.
Answer: B
Terms: Nonprobabilistic selection methods
Diff: Easy
Objective: LO 15-2
AACSB: Reflective thinking skills
3) When auditors wish to evaluate a sample statistically, an acceptable selection method is:
A) systematic sample selection.
B) judgmental selection.
C) haphazard selection.
D) block sample selection.
Answer: A
Terms: Sample statistically
Diff: Easy
Objective: LO 15-2
AACSB: Reflective thinking skills
4) Which of the following statement is most correct with concerning the quantification of sampling risk?
A) Sampling risk cannot be quantified.
B) Sampling risk can be quantified only when non-probabilistic selection techniques are used to select the sample.
C) Sampling risk can be quantified only when probabilistic selection techniques are used to select the sample.
D) None of the above.
Answer: C
Terms: Quantification of sampling risk
Diff: Easy
Objective: LO 15-2
AACSB: Reflective thinking skills
5) The auditor may use which of the following criteria when using the directed sample selection technique?
A) Items most likely to contain misstatements.
B) Items containing selected population characteristics.
C) Large dollar coverage.
D) Any of the above.
Answer: D
Terms: Criteria with directed sample selection technique
Diff: Easy
Objective: LO 15-2
AACSB: Reflective thinking skills
6) Which of the following statements is most correct with respect to the evaluation of non-probabilistic sample results?
A) It is acceptable to make non-probabilistic evaluations only when probabilistic sample selection is used.
B) It is acceptable to make non-probabilistic evaluations only if the auditor cannot quantify sampling risk.
C) It is never acceptable to evaluate a non-probabilistic sample using statistical methods.
D) All of the above are correct.
Answer: C
Terms: Evaluation of non-probabilistic sample results
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
7) Which of the following statements is a valid criticism of non-statistical sampling?
A) Many audit tests, such as footing of journals, must be performed outside a statistical sampling context.
B) The cost of performing random selection or testing often exceeds the benefits.
C) Non-statistical sampling does not differ substantially from statistical sampling methods.
D) Conclusions may be drawn in more precise ways when using statistical sampling methods.
Answer: D
Terms: Criticism of non-statistical sampling
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
8) Which of the following statements is not correct regarding probabilistic and non-probabilistic sample selection?
A) In probabilistic selection, every population item has a known chance of being selected.
B) It is not acceptable to make non-probabilistic evaluations using probabilistic selection.
C) Probabilistic selection is required for all statistical sampling methods.
D) Both methods are acceptable and commonly used.
Answer: B
Terms: Probabilistic and non-probabilistic sample selection
Diff: Challenging
Objective: LO 15-2
AACSB: Reflective thinking skills
9) Non-probabilistic selection methods are not based on mathematical probabilities; therefore:
A) the extent to which a sample is representative of the population may be difficult to determine.
B) they are discouraged by the AICPA.
C) they are not allowed by the Statements on Auditing Standards.
D) they are not as effective as statistical sampling.
Answer: A
Terms: Non-probabilistic selection methods
Diff: Challenging
Objective: LO 15-2
AACSB: Reflective thinking skills
10) Which of the following statements regarding block sampling is least likely to be true?
A) Block sampling is the selection of several items in sequence.
B) It is acceptable to use block sampling for tests of transactions only if a reasonable number of blocks is used.
C) Only one block should be selected to increase the probability of a representative sample.
D) Once the first item in the block is selected, the remainder of the block is chosen automatically.
Answer: C
Terms: Block sampling
Diff: Challenging
Objective: LO 15-2
AACSB: Reflective thinking skills
11) An advantage of using statistical sampling techniques is that such techniques:
A) mathematically measure risk.
B) eliminate the need for judgmental decisions.
C) define the values of precision and reliability required to provide audit satisfaction.
D) have been established in the courts to be superior to judgmental sampling.
Answer: A
Terms: Advantage of using statistical sampling techniques
Diff: Challenging
Objective: LO 15-2
AACSB: Reflective thinking skills
12) Auditors who prefer statistical to nonstatistical sampling believe that the principal advantage of statistical sampling flows from its ability to:
A) quantify sampling risk.
B) promote a more legally defensible procedural approach.
C) define the precision required to provide audit satisfaction.
D) establish conclusive audit evidence with decreased audit effort.
Answer: A
Terms: Advantage of statistical sampling over nonstatistical sampling
Diff: Challenging
Objective: LO 15-2
AACSB: Reflective thinking skills
13) Describe the differences between statistical and nonstatistical sampling in terms of (1) the sample selection methods used, and (2) quantification of sampling risk.
Answer: Nonstatistical sampling differs from statistical sampling in that non-probabilistic sampling can be used for the former but not the latter. In addition, sampling risk can be quantified when using statistical sampling but not when using nonstatistical sampling.
Terms: Differences between statistical and nonstatistical sampling applying sample selection methods and quantification of sampling risk
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
14) You are designing the audit plan for Mathews & Company. You are a strong proponent for statistical sampling over nonstatistical sampling. Make your case.
Answer:
• More efficient samples
• Quantifies sampling risk
• Improved correlation between the sample and the population
Terms: Statistical sampling vs. nonstatistical sampling
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
15) Directed sample selection is the selection of each item in the sample based on some judgment criteria established by the auditor. Discuss three commonly used criteria.
Answer: Commonly-used criteria used in directed sample selection are:
• Items most likely to contain misstatements; for example, unusual or complex transactions, overdue receivables.
• Items containing selected population characteristics, such as transactions selected from each month during the year or from each location.
• Large dollar coverage in which the auditor focuses on selecting the relatively large items in the population for testing.
Terms: Directed sample selection approaches
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
16) It is equally acceptable under professional auditing standards for auditors to use either statistical or nonstatistical sampling methods.
A) True
B) False
Answer: A
Terms: Equally acceptable to use statistical or nonstatistical sampling methods
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
17) When using nonstatistical sampling, the sample must be a probabilistic one.
A) True
B) False
Answer: B
Terms: Nonstatistical sampling; sample must be probabilistic
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
18) The use of haphazard sample selection is encouraged under professional auditing standards.
A) True
B) False
Answer: B
Terms: Haphazard sample selection
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
19) Directed sample selection, block sample selection, and haphazard sample selection are three types of probabilistic sample selection methods.
A) True
B) False
Answer: B
Terms: Probabilistic sample selections; Directed sample selection, block sample selection and haphazard selections
Diff: Moderate
Objective: LO 15-2
AACSB: Reflective thinking skills
Learning Objective 15-3
1) A sample in which every possible combination of items in the population has an equal chance of constituting the sample is a:
A) random sample.
B) statistical sample.
C) judgment sample.
D) representative sample.
Answer: A
Terms: Sample in which every possible combination has equal chance of constituting sample
Diff: Easy
Objective: LO 15-3
AACSB: Reflective thinking skills
2) The process which requires the calculation of an interval and then selects the items based on the size of the interval is:
A) statistical sampling.
B) random sample selection.
C) systematic sample selection.
D) computerized sample selection.
Answer: C
Terms: Process which requires calculation of an interval
Diff: Easy
Objective: LO 15-3
AACSB: Reflective thinking skills
3) In systematic sample selection, the population size is divided by the number of sample items desired in order to determine the:
A) sampling interval.
B) tolerable exception rate.
C) computed upper exceptions rate.
D) mean.
Answer: A
Terms: Systematic sample selection
Diff: Easy
Objective: LO 15-3
AACSB: Reflective thinking skills
4) Which of the following methods of sample selection is appropriately used when selecting a random sample?
A)
Auditor's judgmental selection of items
Use of computer-generated random numbers
Use of random number ables Yes
No
Yes
B)
Auditor's judgmental selection of items
Use of computer-generated random numbers
Use of random number ables No
Yes
Yes
C)
Auditor's judgmental selection of items
Use of computer-generated random numbers
Use of random number ables Yes
No
No
D)
Auditor's judgmental selection of items
Use of computer-generated random numbers
Use of random number ables No
Yes
No
Answer: B
Terms: Methods of sample selection in selecting a random sampl
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
5) Correspondence is established between the random number table and the population by:
A) identifying each item in the population with a unique number.
B) deciding the number of digits to use in the random number table and their association with the population numbering system.
C) defining which digits the auditor uses in a column and the method of reading the table.
D) selecting a random starting point on the table.
Answer: B
Terms: Correspondence between random number table and population
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
6) Which of the following statements is not correct?
A) It is acceptable to pick a starting point on a random number table by using a "blind stab" method.
B) It is impossible to draw a six-digit random number from a table that is separated into columns of five digits.
C) The only reason for selecting a random starting point on a random number table is to eliminate the predictability of the sample.
D) When selecting a three-digit number from a table that is separated into columns of five digits, it is permissible to use the first three digits, the middle three digits, or the last three digits.
Answer: B
Terms: Random number tables
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
7) The advantage of systematic sample selection is that:
A) it is easy to use.
B) there is limited possibility of it being biased.
C) it is unnecessary to determine if the population is arranged randomly.
D) it automatically selects items material to the financial statements.
Answer: A
Terms: Advantage of systematic sample selection
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
8) In performing a review of a client's cash disbursements, an auditor uses systematic sample selection with a random start. The primary disadvantage of this technique is population items:
A) may occur twice in the sample.
B) must be reordered in a systematic pattern before the sample can be drawn.
C) may occur in a systematic pattern, thus negating the randomness of the sample.
D) must be replaced in the population after sampling to permit valid statistical inference.
Answer: C
Terms: Disadvantage of systematic sample selection with random start
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
9) Which of the following is an advantage of systematic sample selection over random number sampling?
A) It provides a stronger basis for statistical conclusions.
B) It enables the auditor to use the more efficient "sampling with replacement" tables.
C) There may be correlation between the location of items in the population, the feature of sampling interest, and the sampling interval.
D) It does not require establishment of correspondence between random numbers and items in the population.
Answer: D
Terms: Advantage of systematic sample selection over random number sampling
Diff: Challenging
Objective: LO 15-3
AACSB: Reflective thinking skills
10) What is the key advantage and disadvantage associated with systematic sample selection? How must auditors address this disadvantage?
Answer: The key advantage is its ease of use. Generally, systematic samples are easily drawn from the population and supporting documentation is easily developed. The key disadvantage is the potential for bias. Once the first item in the sample is selected, all other items are chosen automatically. Auditors should be careful to consider any potential pattern in the data prior to selecting their sample to ensure that their selection considers the possible bias.
Terms: Systematic sample selection
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
11) Describe each of the four types of sample selection methods commonly associated with statistical audit sampling.
Answer: Four types of sample selection methods commonly associated with statistical audit sampling are:
• Simple random sample selection. Every possible combination of elements in the population has an equal chance of constituting the sample.
• Systematic sample selection. A probabilistic method of sampling in which the auditor calculates an interval (the population size divided by the number of sample items desired) and selects the items for the sample based on the size of the interval and a randomly selected number between zero and the interval size.
• Probability proportional to size sample selection. The probability of selecting any individual population item is proportional to its recorded amount.
• Stratified sample selection. A probabilistic method of sampling in which the population is divided into subpopulations, and sub-samples are taken from each of the subpopulations.
Terms: Types of sample selection methods associated with statistical audit sampling
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
12) When selecting a sample, random numbers may be obtained either with replacement or without replacement. Although both selection methods are theoretically sound, auditors rarely use replacement sampling.
A) True
B) False
Answer: A
Terms: Selecting same with random numbers
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
13) Although systematic sample selection is easy to use, its primary disadvantage is that it is not a probabilistic sampling method.
A) True
B) False
Answer: B
Terms: Systematic sample selection; probabilistic sampling method
Diff: Moderate
Objective: LO 15-3
AACSB: Reflective thinking skills
Learning Objective 15-4
1) Which of the following occurrences would be least likely to warrant further audit attention for the auditor?
A) Deviations from client's established control procedures.
B) Deviations from client's budgeted values.
C) Monetary misstatements in populations of transaction data.
D) Monetary misstatements in populations of account balance details.
Answer: B
Terms: Warrant further audit attention for auditor
Diff: Easy
Objective: LO 15-4
AACSB: Reflective thinking skills
2) What types of exceptions are auditors most concerned with when evaluating populations of accounting data?
Answer: There are three types of exceptions that auditors are generally concerned with when evaluating populations of accounting data. They are:
1. Deviations from client's established controls.
2. Monetary misstatements in populations of transaction data.
3. Monetary misstatements in populations of account balance details.
Terms: Types of exceptions and concern when evaluating populations of accounting data
Diff: Moderate
Objective: LO 15-4
AACSB: Reflective thinking skills
3) The auditor may estimate the "estimated population exception rate" by taking a small preliminary sample from the current year's data or by using the prior year's experience with the client.
A) True
B) False
Answer: A
Terms: Estimated population exception rate
Diff: Challenging
Objective: LO 15-4
AACSB: Reflective thinking skills
4) When a small preliminary sample is used to estimate the population exception rate, it (the preliminary sample) cannot be included in the ultimate sample.
A) True
B) False
Answer: B
Terms: Population exception rate; Small preliminary sample
Diff: Challenging
Objective: LO 15-4
AACSB: Reflective thinking skills
Learning Objective 15-5
1) The risk which the auditor is willing to take in accepting a control as being effective when the true population exception rate is greater than a tolerable rate is the:
A) finite correction factor.
B) tolerable exception rate.
C) acceptable risk of assessing control risk too low.
D) estimated population exception rate.
Answer: C
Terms: Risk auditor is willing to take in accepting a control as being effective
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
2) The exception rate the auditor will permit in the population and still be willing to reduce the assessed level of control risk is called the:
A) tolerable exception rate.
B) estimated population exception rate.
C) acceptable risk of overreliance.
D) sample exception rate.
Answer: A
Terms: Exception rate auditor will permit and still be willing to reduce assessed level of control risk
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
3) If the auditor decides to assess control risk at the moderate level in a private company audit, when in previous years the auditor set control risk at the maximum level, then tests of controls for the current year would be:
A) increased in number.
B) reduced in number.
C) not performed.
D) unchanged from prior planned settings.
Answer: A
Terms: Assess control risk
Diff: Easy
Objective: LO 15-5
AACSB: Analytic skills
4) When the computed upper exception rate is greater than the tolerable exception rate, it is necessary for the auditor to take specific action. Which of the following courses of action would be most difficult to justify?
A) Reduce the tolerable exception rate so as to accept the sample results.
B) Expand the sample size and perform more tests.
C) Revise the assessed control risk.
D) Write a letter to management which outlines the control deficiencies.
Answer: A
Terms: Computed upper exception rate is greater than tolerable exception rate
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
5) Which of the following would have the least impact in determining sample size for tests of controls?
A) Expected population exception rate.
B) Risk of assessing control risk too low.
C) Tolerable exception rate.
D) Population size.
Answer: D
Terms: Least impact on determining sample size for tests of controls
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
6) Which of the following represents the best description of the tolerable exception?
A) The highest exception rate the auditor will permit in the control being tested and still conclude it is operating effectively.
B) The highest exception rate the auditor expects to find in the population.
C) The number of exceptions found in the sample divided by the sample size.
D) The highest estimated exception rate in a population at a given ARACR.
Answer: A
Terms: Tolerable exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
7) Which of the following is most correct when using audit sampling for exception rates?
A) auditor is concerned with the lowest rate
B) auditor is concerned with the highest rate
C) auditor is concerned with the average on previous audits
D) doesn't impact the auditors decision
Answer: B
Terms: Auditing sampling for exception rates
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
8) The highest estimated exception rate in the population at a particular acceptable risk of assessing control risk too low is:
A) the upper exception rate.
B) estimated population exception rate.
C) the computed upper exception rate.
D) the tolerable exception rate.
Answer: C
Terms: Highest estimated exception rate in population; Acceptable risk of assessing control risk too low
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
9) You are testing controls over accounts receivable and are determining if the appropriate credit authorization was made by an authorized person. Your sample size is 40 and your computed upper deviation rate is 5%. On the first 10 items sampled you have found 8 deviations. You would most likely:
A) continue with the other 30 items.
B) revisit the sample size calculations.
C) increase the tolerable deviation rate.
D) stop the test and re-set control risk for accounts receivable.
Answer: D
Terms: Sample size, computed upper deviation and actual deviations
Diff: Moderate
Objective: LO 15-5
AACSB: Analytic skills
10) The exception rate that the auditor will permit in the population and still be willing to use the preliminary control risk assessment is called the:
A) acceptable exception rate.
B) estimated population exception rate.
C) sample exception rate.
D) tolerable exception rate.
Answer: D
Terms: Exception rate; Preliminary control risk assessment
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
11) The auditor's best estimate of the population exception rate is the:
A) current year's sample exception rate.
B) tolerable exception rate.
C) prior year's sample exception rate.
D) computed upper exception rate.
Answer: A
Terms: Estimate of population exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
12) Place the following steps in their proper order:
1. Analyze exceptions
2. Select the sample
3. Define attributes and exception conditions
4. State the objectives of the audit test
5. Specify the tolerable exception rate
A) 1, 3, 2, 4, 5.
B) 4, 3, 1, 2, 5.
C) 4, 3, 5, 2, 1.
D) 1, 2, 3, 4, 5.
Answer: C
Terms: Auditing sampling steps
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
13) If an auditor judgmentally selects a sample of one hundred items from a population and finds two exceptions, the auditor:
A) can conclude that the sample exception rate is 2%.
B) can conclude that the population exception rate is 2%.
C) can calculate the highest exception rate expected in the population.
D) cannot make any conclusions about either the sample or the population.
Answer: A
Terms: Sample selected from population and found exceptions
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
14) In testing controls, an overreliance on internal controls that reduces substantive tests and increases the likelihood of not detecting a material misstatement occurs because:
A) true deviation in the population was less than the sample.
B) true deviation in the population was greater than the sample.
C) auditor judgment was flawed.
D) it is inherent in the audit risk model.
Answer: B
Terms: Testing controls; Overreliance on internal controls
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
15) You are determining the significance of the following: you set a 5% risk of assessing control risk to low and your computation of the upper deviation risk is 7%. What could you conclude?
A) There is a 95% chance the deviation rate is the population is less than 5%.
B) There is a 5% chance the deviation rate in the population is less than 7%.
C) There is a 95% chance the deviation rate in the population exceeds 95%.
D) There is a 5% chance the deviation rate in the population exceeds 7%.
Answer: D
Terms: Risk of assessing control risk low and computation of upper deviation risk
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
16) Which of the following is the exception rate that the auditor expects to find before testing?
A) Sample exception rate.
B) Estimated population exception rate.
C) Computed exception rate.
D) Tolerable exception rate.
Answer: B
Terms: Exception rate auditor expects to find before testing
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
17) Which of the following is not a term related to evaluating results in audit sampling until after a sample is tested and evaluated?
A) Sample exception rate.
B) Estimated population exception rate.
C) Computed upper exception rate.
D) Exception.
Answer: B
Terms: Term not related to evaluating results in audit sampling
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
18) The relationship of tolerable exception rate (TER) to sample size is:
A) direct (larger TER = larger sample).
B) inverse (larger TER = smaller sample).
C) variable (sometimes larger, sometimes smaller).
D) not determinable.
Answer: B
Terms: Relationship of tolerable exception rate (TER) to sample size
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
19) Which of the following must be set prior to testing a sample?
A) Sample exception rate.
B) Achieved upper precision limit.
C) Computed exception rate.
D) Tolerable exception rate.
Answer: D
Terms: Set prior to testing sample
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
20) The relationship of acceptable risk of accessing control risk too low (ARACR) to sample size is:
A) variable (sometimes larger, sometimes smaller).
B) direct (larger ARACR = larger sample).
C) inverse (larger ARACR = smaller sample).
D) nonexistent.
Answer: C
Terms: Relationship of acceptable risk of assessing control risk too low (ARACR) to sample size
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
21) The sample exception rate equals:
A) the number of exceptions in the population divided by the sample size.
B) the number of items in the population multiplied by the number of exceptions in the sample.
C) the number of exceptions in the sample divided by the sample size.
D) the number of exceptions in the population divided by the population size.
Answer: C
Terms: Sample exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
22) Before the population can be considered acceptable based on the acceptable risk of assessing control risk too low, the computed upper exception rate must be:
A) greater than or equal to the tolerable exception rate.
B) greater than the tolerable exception rate.
C) less than or equal to the tolerable exception rate.
D) less than the tolerable exception rate.
Answer: C
Terms: Population considered acceptable based on acceptable risk of assessing control risk too low; Upper exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
23) An auditor uses statistical sampling for attributes in internal control testing. She would most likely reduce the planned reliable on the control tested when:
A) the sample deviation rate plus the adjustment for sampling risk exceeded the tolerable deviation rate.
B) the sample deviation rate plus the adjustment for sampling risk equaled the tolerable deviation rate.
C) the tolerable deviation rate less the adjustment for sampling risk exceeded the expected population deviation rate.
D) the tolerable deviation rate plus the adjustment for sampling risk was less than the expected population deviation rate.
Answer: A
Terms: Statistical sampling for attributes; Reduce planned reliance on control tested
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
24) The acceptable risk of assessing control risk too low is:
A)
The risk that the auditor is willing to take of accepting a control as ineffective when it is effective The risk that the auditor is willing to take of accepting a control as effective when it is ineffective
Yes
Yes
B)
The risk that the auditor is willing to take of accepting a control as ineffective when it is effective The risk that the auditor is willing to take of accepting a control as effective when it is ineffective
No
No
C)
The risk that the auditor is willing to take of accepting a control as ineffective when it is effective The risk that the auditor is willing to take of accepting a control as effective when it is ineffective
Yes
No
D)
The risk that the auditor is willing to take of accepting a control as ineffective when it is effective The risk that the auditor is willing to take of accepting a control as effective when it is ineffective
No
Yes
Answer: D
Terms: Acceptable risk of assessing control risk too low
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
25) When using statistical sampling, the auditor would most likely require a smaller sample if the:
A) population increases.
B) desired reliability decreases.
C) desired precision interval narrows.
D) expected exception rate increases.
Answer: B
Terms: Statistical sampling; Auditor requires smaller sample
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
26) Whenever auditors use sampling, they risk making incorrect conclusions about the population. For audit sampling of tests of transactions this risk is known as:
A) acceptable risk of assessing control risk too low.
B) acceptable risk of assessing transaction testing as too low.
C) risk that the sample is not representative of the population.
D) risk that the sample conclusions cannot be useful because of non-probability sampling.
Answer: A
Terms: Sampling and the risk of making incorrect conclusions about the population
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
27) When deciding on the acceptable risk of assessing control risk too low, the auditor needs to:
A) rely on his/her professional judgment.
B) err on the side of conservatism.
C) consult the professional standards.
D) follow SEC guidelines.
Answer: A
Terms: Acceptable risk of assessing control risk too low
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
28) The difference between the tolerable exception rate and the estimated population exception rate is called:
A) accuracy of the initial sample estimate.
B) inflation factor of the initial sample estimate.
C) precision of the initial sample estimate.
D) reliability of the initial sample estimate.
Answer: C
Terms: Difference between tolerable exception and estimated population exception rate
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
29) If the result obtained from a particular sample for control and substantive tests of transactions is critical to the formation of an audit opinion, which of the following is the most important to the auditor in concluding of the appropriateness and sufficiency of evidence gathered?
A) Acceptable risk of assessing control risk too low.
B) Estimated population exception rate.
C) Tolerable exception rate.
D) Size of the population.
Answer: A
Terms: Control and substantive tests of transactions; Important in concluding appropriateness and sufficiency of evidence
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
30) The tolerable rate of exceptions for tests of controls is generally:
A) lower than the expected rate of errors in the related accounting records.
B) higher than the expected rate of errors in the related accounting records.
C) identical to the expected rate of errors in the related accounting records.
D) unrelated to the expected rate of errors in the related accounting records.
Answer: B
Terms: Tolerable rate of exceptions for tests of controls
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
31) Which of the following results in a larger sample size?
A) decrease the desired confidence level and decrease the tolerable deviation rate
B) increase the desired confidence level and decrease the tolerable deviation rate
C) decrease the desired confidence level and increase the tolerable deviation rate
D) increase the desired confidence level and increase the tolerable deviation rate
Answer: B
Terms: Results in larger sample size
Diff: Moderate
Objective: LO 15-1 and LO 15-5
AACSB: Reflective thinking skills
32) An auditor plans to examine a sample of 40 canceled checks for a countersignature which is prescribed in the client's control procedures manual. Two of the checks in sample cannot be located by the company or the auditor. The auditor would most likely:
A) treat the missing checks as a deviation when evaluating the results of the sample.
B) draw a conclusion on a sample size of 38.
C) substitute two more checks to get to a sample size of 40.
D) recalculate the sample excluding the original 40 checks.
Answer: A
Terms: Missing canceled checks in population
Diff: Moderate
Objective: LO 15-4 and LO 15-5
AACSB: Analytic skills
Topic: Public
33) You are determining the appropriate sample size to test accounts receivable. What three factors are the most important to consider?
Answer:
1. Tolerable exception rate (TER)
2. Acceptable risk of assessing control risk too low (ARACR)
3. Estimated population exception rate (EPER)
Terms: Factors to determine appropriate sample size
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
34) Explain the effect on sample size of increasing each of the following: (1) tolerable exception rate, (2) estimated population exception rate, (3) acceptable risk of assessing control risk too low, and (4) population size.
Answer: The tolerable exception rate and acceptable risk of assessing control risk too low are inversely related to sample size; that is, as TER or ARACR increase, sample size will decrease. The estimated population exception rate and the population size are directly related to sample size; that is, as EPER increases, sample size will also increase, and as population size increases, sample size may slightly increase.
Terms: Effects on sample size when increasing tolerable exception, estimated population exception rate, acceptable risk of assessing control risk too low, and population size
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
35) The prior year's sample exception rate is the auditor's best estimate of the exception rate in the population for the current year.
A) True
B) False
Answer: B
Terms: Sample exception rate
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
36) The tolerable exception rate is the rate that the auditor will permit in the population and still be willing to conclude a control is effective.
A) True
B) False
Answer: A
Terms: Tolerable exception rate
Diff: Easy
Objective: LO 15-5
AACSB: Reflective thinking skills
37) The only way to know with certainty whether a sample is representative is to subsequently audit the entire population.
A) True
B) False
Answer: A
Terms: Know with certainty whether sample is representative is to audit entire population
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
38) Acceptable risk of assessing control risk too low is the risk that the auditor is willing to take in accepting a control as effective when the true population exception rate is greater than the estimated population exception rate.
A) True
B) False
Answer: B
Terms: Acceptable risk of assessing control risk
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
39) ARACR is normally lower for a public company audit than a private company audit.
A) True
B) False
Answer: A
Terms: ARACR - Acceptable risk of assessing control risk
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
Topic: Public
40) The conjoined sample exception rate is the auditor's "best estimate" of the actual exception rate in the entire population.
A) True
B) False
Answer: B
Terms: Sample exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
41) When the computed upper exception rate is greater than the tolerable exception rate in attributes sampling, one possible appropriate course of action is to increase sample size.
A) True
B) False
Answer: A
Terms: Computed upper exception rate and tolerable exception rate
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
42) Tolerable exception rate (TER) is inversely related to sample size.
A) True
B) False
Answer: A
Terms: Tolerable exception rate and sample size relationship
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
43) The higher the assessed control risk, the lower will be the acceptable risk of assessing control risk too low.
A) True
B) False
Answer: B
Terms: Control risk assessment
Diff: Moderate
Objective: LO 15-5
AACSB: Reflective thinking skills
44) In nonstatistical sampling, the calculated sampling error is the difference between the tolerable exception rate and the sample exception rate.
A) True
B) False
Answer: A
Terms: Nonstatistical sampling; Calculated sampling error; Difference between tolerable exception rate and sample exception rate
Diff: Challenging
Objective: LO 15-5
AACSB: Reflective thinking skills
Learning Objective 15-6
1) Rodgers CPA believes that the rate of client billing errors is 4% and has established a tolerable deviation rate of 6%. In auditing client invoices Rodgers should use:
A) stratified sampling.
B) classical sampling.
C) proportional sampling.
D) attributes sampling.
Answer: D
Terms: Auditing client invoices
Diff: Easy
Objective: LO 15-6
AACSB: Analytic skills
2) Attributes sampling would be an appropriate method to use on which one of the following procedures in an audit program?
A) Review sales transactions for large and unreasonable amounts.
B) Observe whether the duties of the accounts receivable clerk are separate from handling cash.
C) Examine a sample of duplicate sales invoices for credit approval by the credit manager.
D) Review the aged schedule of accounts receivable to determine if receivables from officers are included.
Answer: C
Terms: Attributes sampling
Diff: Easy
Objective: LO 15-6
AACSB: Reflective thinking skills
3) As the auditor you are assessing the proper sample size to use in testing controls. When using attributes sampling which of the following is most correct?
A) A 10% change in population size will have the least effect on sample size.
B) A 10% change in the tolerable deviation rate will have the least effect on sample size.
C) A 10% change in the expected deviation rate will have the least effect on sample size.
D) A 10% change in the tolerable will have the least effect on sample size
Answer: A
Terms: Attributes sampling
Diff: Moderate
Objective: LO 15-6
AACSB: Reflective thinking skills
4) In attributes sampling, an estimate of the expected population exception rate is necessary to plan the sample size. The relationship of expected population exception rate (EPER) to sample size is:
A) direct (small EPER = small sample).
B) inverse (small EPER = large sample).
C) a variable (sometimes small, sometimes large) dependent on other factors present.
D) indeterminate.
Answer: A
Terms: Attributes sampling; Expected population exception rate and sample size
Diff: Moderate
Objective: LO 15-6
AACSB: Reflective thinking skills
5) If an auditor, planning to use statistical sampling, is concerned with the number of a client's sales invoices that contain mathematical errors, the auditor would most likely utilize which sampling technique?
A) Random sampling with replacement
B) Sampling for attributes
C) Ssampling for variables
D) Stratified random sampling
Answer: B
Terms: Statistical sampling; Number of invoices containing mathematical errors
Diff: Challenging
Objective: LO 15-6
AACSB: Reflective thinking skills
6) For which of the following audit procedures would audit sampling not be appropriate?
A) Review sales transactions for large and unusual amounts.
B) Examine a sample of duplicate sales invoices for credit approval.
C) Compare the quantity on duplicate sales invoices with the quantity on related shipping documents.
D) Audit sampling is appropriate for each of the above procedures.
Answer: A
Terms: Audit sampling not appropriate for which audit procedure
Diff: Moderate
Objective: LO 15-5 and LO 15-6
AACSB: Reflective thinking skills
7) Match eight of the terms (a-k) with the definitions provided below (1-8):
a. Haphazard selection
b. Attributes sampling
c. Block sample selection
d. Judgmental sampling
e. Non-probabilistic sample selection
f. Probabilistic sample selection
g. Random sample
h. Representative sample
i. Statistical sampling
j. Systematic sample selection
k. Sampling distribution ________ 1. The use of mathematical measurement techniques to calculate formal statistical results and quantify sampling risk.
________ 2. A non-probabilistic method of sample selection in which items are selected in measured sequences.
________ 3. A sample whose characteristics are the same as those of the population.
________ 4. A statistical, probabilistic method of sample evaluation that results in an estimate of the proportion of items in a population containing a characteristic of interest.
________ 5. A non-probabilistic method of sample selection in which items are chosen without regard to their size, source, or other distinguishing characteristics.
________ 6. An auditor selects items such that each population item has a known probability of being included in the sample.
________ 7. A frequency distribution of the results of all possible samples of a specified size that could be obtained from a population containing some specific parameters.
________ 8. A sample in which every possible combination of elements in the population has an equal chance of constituting the sample.
Answer:
1. i
2. c
3. h
4. b
5. a
6. f
7. k
8. g
Terms: Haphazard selection; Attributes sampling; Block sample selection; Probabilistic sample selection; Random sample; Representative sample; Statistical sampling; Sampling distribution
Diff: Moderate
Objective: LO 15-1, LO 15-2, LO 15-3, and LO 15-6
AACSB: Reflective thinking skills
8) There are 14 steps to attributes sampling, divided into three sections: plan the sample, select the sample and perform the audit procedures, and evaluate the results. Discuss the three steps that comprise the "evaluate the results" section.
Answer: The steps that comprise the "evaluate the results" section in attributes sampling are:
1. Generalize from the sample to the population. Tables can be used to determine the upper precision limit (computed upper exception rate) based on the acceptable risk of assessing control risk too low and the sample exception rate.
2. Analyze exceptions. In this step, the auditor should analyze individual exceptions to determine the breakdown in the internal controls that caused them.
3. Decide the acceptability of the population. In the final step, the auditor compares the computed upper exception rate with the tolerable exception rate. If the computed upper exception rate is less than or equal to the tolerable exception rate, then the population is considered acceptable.
Terms: Steps that comprise evaluate the results section of 14 steps to attributes sampling
Diff: Challenging
Objective: LO 15-6
AACSB: Reflective thinking skills
9) There are 14 steps to attributes sampling, divided into three sections: plan the sample, select the sample and perform the audit procedures, and evaluate the results. In the planning section there are 9 steps, beginning with "state the audit objective" and ending with "determine the initial sample size". Name and discuss at least 3 steps between the ones listed above.
Answer: The steps that comprise the "plan the sample" section in attributes sampling are:
1. State the objectives of the audit test. Typically, in attributes sampling, the overall objective is to test the application of controls and determine whether transactions contain monetary misstatements.
2. Decide if audit sampling applies. Audit procedures involving documentation normally can be performed using sampling, whereas procedures involving observation, inquiry of the client, and analytical procedures are not suited to audit sampling.
3. Define attributes and exception conditions. In this step, the auditor carefully defines the attributes of interest and the conditions that constitute exceptions or errors.
4. Define the population. The population is the body of data about which the auditor wished to generalize, from which the sample must be drawn.
5. Define the sampling unit. In attributes sampling, the sampling unit is normally a document, identified by document numbers, or a transaction recorded in a journal.
6. Specify tolerable exception rate. This is the exception rate that the auditor will permit in the population and still be willing to rely on internal controls.
7. Specify acceptable risk of assessing control risk too low. This is the risk that the auditor is willing to take in accepting a control as effective when the true population exception rate is greater than the tolerable exception rate.
8. Estimate the population exception rate. This is the exception rate the auditor expects to find in the population before testing begins.
9. Determine the initial sample size. The initial sample size is determined from tables, based on values for the tolerable exception rate, acceptable risk of assessing control risk too low, and the estimated exception rate.
Terms: Steps in Plan the sample in attributes sampling
Diff: Challenging
Objective: LO 15-6
AACSB: Reflective thinking skills
Learning Objective 15-7
1) A principal advantage of statistical methods of attributes sampling over nonstatistical methods is that they provide a scientific basis for establishing the:
A) risk of assessing control risk too low.
B) tolerable exception rate.
C) expected population exception rate.
D) sample size.
Answer: D
Terms: Advantage of statistical methods of attributes sampling
Diff: Moderate
Objective: LO 15-7
AACSB: Reflective thinking skills
2) In using sampling distribution for attributes, which one of the following must be known to evaluate the sample results?
A) Estimated dollar value of the population.
B) Standard exception of the values in the population.
C) Actual exception rate of the attribute in the population.
D) Sample size.
Answer: D
Terms: Estimation sampling for attributes
Diff: Moderate
Objective: LO 15-7
AACSB: Reflective thinking skills
3) When audit procedures have been completed for an attributes sampling application, the auditor must generalize from the sample to the population. Which of the following statements would be incorrect regarding this process?
A) The auditor would use an attributes sampling table to determine the computed upper exception rate.
B) The computed upper exception rate is the highest exception rate in the population that the auditor is willing to accept.
C) It would be wrong for the auditor to conclude that the population exception rate is exactly the same as the sample exception rate.
D) In selecting the table corresponding to the risk of overreliance, it should be the same as the ARACR used for determining the initial sample size.
Answer: B
Terms: Attributes sampling application
Diff: Challenging
Objective: LO 15-7
AACSB: Reflective thinking skills
4) What is an auditor's evaluation of a statistical sample for attributes when a test of 100 documents results in four exceptions if the tolerable exception rate is 5%, the expected population exception rate is 3%, and the allowance for sampling risk is 2%?
A) Accept the sample results as support for planned reliance on the control because the tolerable rate less the allowance for sampling risk equals the expected population exception rate.
B) Modify planned reliance on the control because the sample exception rate plus the allowance for sampling risk exceeds the tolerable rate.
C) Modify planned reliance on the control because the tolerable rate plus the allowance for sampling risk exceeds the expected population exception rate.
D) Accept the sample results as support for planned reliance on the control because the sample deviation rate plus the allowance for sampling risk exceeds the tolerable rate.
Answer: B
Terms: Statistical sample for attributes; Tolerable exception rate, expected population exception rate and allowance for sampling risk
Diff: Challenging
Objective: LO 15-7
AACSB: Reflective thinking skills
5) In the evaluation of the results of an attributes sample, the fact that the exception rate in the sample was 2% rather than the estimated population exception rate of 4% would cause the computed upper exception rate to:
A) be less than the tolerable exception rate.
B) equal the tolerable exception rate.
C) exceed the tolerable exception rate.
D) cannot be determined from the information given.
Answer: A
Terms: Attributes sample; Exception rate in sample, estimated population exception rate, and computed upper exception rate
Diff: Challenging
Objective: LO 15-7
AACSB: Reflective thinking skills
6) If the size of the sample to be used in a test of attributes is not determined by using statistical concepts, but the sample is chosen in accordance with random selection procedures:
A) no inferences can be drawn from the sample.
B) the auditor has committed a nonsampling error.
C) the auditor may or may not achieve the tolerable exception rate at the acceptable risk of assessing control risk too low.
D) the auditor will have to evaluate results using the principles of discovery sampling.
Answer: C
Terms: Size of sample used in test of attributes
Diff: Challenging
Objective: LO 15-7
AACSB: Reflective thinking skills
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