Chapter 9 Estimation and Confidence Intervals 30. A random sample of 85 group leaders‚ supervisors‚ and similar personnel revealed that a person spent an average 6.5 years on the job before being promoted. The population standard deviation was 1.7 years. Using the 0.95 degree of confidence‚ what is the confidence interval for the population mean? A) 6.99 and 7.99 B) 4.15 and 7.15 C) 6.14 and 6.86 D) 6.49 and 7.49 Answer: C 31. The mean weight of trucks traveling on a particular section of I-475
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Chapter 9 GDP is the market value of all the final goods and services produced by all firms located in the United States in a given time period Marginal external cost The cost of producing an additional unit of a good or service that falls on people other than the producer. Efficiency Efficiency is achieved when the marginal social benefit equals the marginal social cost. Which of the following best describes an externality? An effect of a transaction felt by someone other than the
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9 Sinusoidal Steady State Analysis Assessment Problems AP 9.1 [a] V = 170/−40◦ V [b] 10 sin(1000t + 20◦ ) = 10 cos(1000t − 70◦ ) . ·. I = 10/−70◦ A [c] I = 5/36.87◦ + 10/−53.13◦ = 4 + j3 + 6 − j8 = 10 − j5 = 11.18/−26.57◦ A [d] sin(20‚000πt + 30◦ ) = cos(20‚000πt − 60◦ ) Thus‚ V = 300/45◦ − 100/−60◦ = 212.13 + j212.13 − (50 − j86.60) = 162.13 + j298.73 = 339.90/61.51◦ mV AP 9.2 [a] v = 18.6 cos(ωt − 54◦ ) V [b] I = 20/45◦ − 50/ − 30◦ = 14.14 + j14.14 − 43.3 + j25 = −29.16 + j39.14 = 48.81/126
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Chapter IX. The French Revolution pp. 361-415 France “replaced the ‘Old Regime’ with ‘modern society‚’ and at its extreme phase it became very radical‚ so much so that all later revolutionary movements have looked back to it as a predecessor to themselves.” The French Revolution occurred in the most advanced country of the day‚ the center of the Enlightenment. It was the most powerful‚ wealthy nation in Europe. It had the largest population (24 m) under one government. Paris was smaller than
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Jessica Schmitt Auditing Chapter 9‚ problem 9-28 A. Since there are no specific materiality guidelines‚ it is the auditor’s professional judgment that must be used to determine the appropriate preliminary estimates of materiality. I used the guidelines listed on pg 251 in figure 9-2: Statement Percent Guideline Dollar Range (in thousands) Earnings from continuing operations before taxes 3-6 % $12‚500-$25‚100 (rounded) Current Assets 3-6 % $67‚600-$135‚200 (rounded) Current Liabilities 3-6 %
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CHAPTER EIGHT INTERVAL ESTIMATION MULTIPLE CHOICE QUESTIONS In the following multiple choice questions‚ circle the correct answer. 1. When s is used to estimate (‚ the margin of error is computed by using a. normal distribution b. t distribution c. the mean of the sample d. the mean of the population Answer: b 2. As the number of degrees of freedom for a t distribution increases‚ the difference between the t distribution and the standard
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Project Management: The Managerial Process‚ 6/e Erik W. Larson & Clifford F. Gray Chapter 9 Reducing Project Duration- Multiple Choice Quiz: 1. A) Imposed project deadlines B) Time to market C) Unforeseen project delays D) High overhead E) Incentive contracts 2 CORRECT 2. Intense global competition and rapid technological advances create pressure on developing projects rapidly. This is an example of reducing project duration caused by: A) Imposed project deadlines B) Time
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Chapter 9 1 Identify a security objective that adds value to a business. Confidentiality Privacy Integrity Acess Control Authorization 2 True or False: AES is an asymmetric encryption algorithm. False 3 True or False: 3DES is an asymmetric encryption algorithm. False 4 True or False: RSA is an asymmetric encryption algorithm. True 5 True or False: RC4 is an asymmetric encryption algorithm. False 6 Identify a security principle that can be satisfied with an asymmetric digital signature and not by
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Chapter 9 & 10 Short Answer and Critical Thinking CHAPTER 9 Short answer 15. Name and describe the four functional abilities of muscle that are the basis for muscle response. Contractibility- is the ability to shorten forcibly when adequately stimulated. This ability sets muscle apart from other tissue types. Extensibility- is the ability to extend or stretch. Muscle cells shorten when contracting‚ but they can stretch even beyond their resting length‚ when relaxed. Elasticity-
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ACL Chapter 9 Problems Problem 1 In addition to determining sample size‚ ACL can also select a random sample for you. Draw a sample of Accounts Receivable (AR) transactions from the Roger Company AR table assuming the confidence is 95‚ the upper error limit is 9 percent‚ and the expected error rate is 5 percent. 1. Open the Roger_Company_AR table 2. Select Sampling >> Sample Records and the Sample window appears 3. Make sure Record is the chosen Sample Type 4. Under Sample
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