1. The probability that a randomly selected patient who visits the emergency room will die within 1 year of the visit is 0.05. (binomial probability distribution)

a) What is the probability that exactly 1 of 10 randomly selected visitors to the ER will die within 1 year?

b) What is the probability that fewer than 2 of 25 randomly selected visitors to the ER will die within 1 year?

c) What is the probability that at least 2 of 25 randomly selected visitors to the ER will die within 1 year?

d) Would it be unusual if more than 3 of 30 randomly selected visitors to the ER died within 1 year? Why?

e) In a random sample of 1000 visitors to the ER, how many visitors are expected to die within the next year? What is the standard deviation number of deaths?

2. Determine whether the random variable is discrete or continuous.

a) The flight time accumulated by a randomly selected Air Force fighter pilot.

b) The number of points scored by the Miami Heat in a randomly selected basketball game.

3. Suppose that the talk time on the Apple iPhone is approximately normally distributed with mean 7 hours and standard deviation 0.8 hour.

a) What proportion of the time will a fully charged iPhone last at least 6 hours?

b) What is the probability a fully charged iPhone will last less than 5 hours?

c) What talk time would represent the cutoff for the top 5% of all talk times?

d) Would it be unusual for the phone to last more than 9 hours? Why?

4. The waist circumference of males 20 to 29 years old is approximately normally distributed, with mean 92.5 cm and standard deviation 13.7 cm.

a) Use the normal model to determine the proportion of 20- to 29-year-old males whose waist circumference is less than 100 cm.

b) What is the probability that a randomly selected 20- to 29-year-old male has a waist circumference between 80 and 100 cm?

c) Determine the waist circumference that represents the...

...statement or answers the question. Find an antiderivative of the given function. 1) x-3 + 1 4 x 2) cos πx + 6 sin x 6 Find the most general antiderivative. 6 3) ( t - t) dt
1)
2)
∫
3)
4)
∫ sin θ(cot θ + csc θ) dθ
4)
Use a ﬁnite approximation to estimate the area under the graph of the given function on the stated interval as instructed. 5) f(x) = x2 between x = 2 and x = 6 using the "midpoint rule" with four rectangles of equal 5) width. Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to 4 your sketch the rectangles associated with the Riemann sum ∑ f(ck) Δxk , using the indicated point in the kth k=1 subinterval for ck. 6) f(x) = x2 - 1, [0, 8], right-hand endpoint 6)
y 56 52 48 44 40 36 32 28 24 20 16 12 8 4 -4 2 4 6 x
Find the formula and limit as requested. 7) For the function f(x) = 2x2+ 2, ﬁnd a formula for the upper sum obtained by dividing the interval [0, 3] into n equal subintervals. Then take the limit as n→∞ to calculate the area under the curve over [0, 3].
7)
1
Evaluate the integral. 0 8) 3x2 + x + 3 dx
∫
8)
6 Find the derivative. x3 sin t dt 9) d dx 0
∫
9)
Find the total area of the region between the curve and the x-axis. 10) y = x2(x - 2)2; 0 ≤ x ≤ 2 Find the area of the shaded region. 11)
10)
11)
Evaluate the integral. 12)
∫ x2 ∫
x3 +...

...MGMT 4020 Exam3StudyGuide – Fall 2012
As I discussed in class, exam3 will cover chapters 11-14. The exam will consist of 40 multiple choice questions worth 5 points each, and a one-page essay.
You choose one of the essay questions to answer. Please bring your essay with you to the exam.
I am expecting well-written five-paragraph essays with the first and last paragraphs being your introduction and conclusion, respectively. Keep in mind I want a one-page essay. Keep it concise and focused.
The questions are:
1. How does EEO law affect the practice of human resource management in three functional areas (examples: recruitment, training, variable pay, etc.)? Please be specific, especially with regard to the laws themselves.
2. How is diversity changing the practice of human resource management across multiple functional areas (examples: recruitment, training, variable pay, etc.)? Again, be specific.
3. How will a continued economic slowdown and increased unemployment affect the practice of human resource management across multiple functional areas? Again, be specific.
Beyond the learning objectives at the beginning of the chapters and the definitions, study these questions:
Chapter 11 – Pay Structure
1. Identify the kinds of decisions involved in...

...business.
3. What is a Job Specification? PG 264
A job specification is a detailed written statement of work assignments and the qualifications needed to do the job acceptably.
4. What is a Job Description? PG 264
A job description lists the duties and responsibilities of a given job.
5. What is a Job Requirement?
6. Define the sources used to find employees?
7. What are internal sources? PG 265
Internal sources are individuals within the organization.
8. What are external sources? PG 266
External sources are those outside the organization or former employees.
9. Define recruiting and selecting employees. PG 268
Go out and recruit them!
10. How would a company gather information about an applicant? PG 269
In general, what a person has done in the past best indicates future performance.
11. How would a company checking references? PG 272
Personal, academic, and past employment is ways to check references. A personal visit, telephone call, or a personal letter are other ways to verify work history.
12. Define training and developing employees. PG 273
The effectiveness of a small business results not only from the ability of the owner but also from (1) the inherent abilities of its employees; (2) their development through training, education, and experience; and (3) their motivation. Some of the results of training and developing workers include (1) increased productivity, (2)...

...Mgmt StudyGuideExam3
Chapter 9
* Acquired needs theory: motivation theory that focuses on learned needs-such as those for achievement, power and affiliation- that becomes enduring tendencies
* Content theory: a motivation theory that focuses on what needs a person is trying to satisfy and on what features of the work environment seem to satisfy those needs
* Equity theory: a motivation theory proposing that individuals will compare their circumstances t those of others and that such comparisons may motivate certain kinds of behavior
* Expectancy theory: a motivation theory that focuses on the thought processes people use when choosing among alternative courses of action with their anticipated consequences
* Extinction: the absence of positive consequences for behavior, lessening the likelihood of that behavior in the future
* Goal-setting theory: a belief proposing that human action is directed by conscious goals and intentions
* In-group: the group to which an individuals belongs
* Job characteristics model: an approach that focuses on the motivational attributes of jobs by emphasizing three sets of variables: core job characteristics, critical psychological states and outcomes
* Job enrichment: increasing the complexity of a jb to provide a greater sense of responsibility, accomplishment and achievement
* Maslow’s need hierarchy theory: a set of beliefs proposing...

...Professor FitzGerald Spring 2014
Introduction to Beaches and Shorelines ES 142
STUDY QUESTIONS #3
Subject: Climatic Effects On Shorelines Refer to Chapter 5
1. How are barriers formed along the North Slope of Alaska?
2. Why are rivers muddier in the South than they are in the North?
3. What happens to the calcium carbonate (CaCO3, shells and coral) content of beaches from
New England to Florida?
4. What is an oolite and how do they form?
5. What are mangroves and where are they found?
6. How is beach rock formed? In what type of regions do we find beach rock?
Subject: Storms and Storm Impacts Refer to Chapters 5 & 7
1. Be able to draw and explain the development of the major circulation (convection cells) that
dominate the surface of Earth. What is the Hadely Cell?
2. What are three types of low-pressure systems? What are their wind circulation patterns?
3. Draw a low-pressure system. Explain why they have counter-clockwise circulation in the No.
Hemisphere.
4. Where do hurricanes in the Atlantic form? Explain their general pathway and what controls this.
5. Be able to compare and contrast extratropical versus tropical cyclones (northeasters vs.
hurricanes)
6. How can isobars be used to tell us about wind...

...QNT/561 Final Examination StudyGuide
This studyguide will prepare you for the Final Examination you will complete in the final week. It contains practice questions, which are related to each week’s objectives. In addition, refer to each week’s readings and your student guide as study references for the Final Examination.
Week One: Descriptive Statistics and Probability Distributions
Objective: Compute descriptive statistics for given data sets.
1. In 1995, the cost of unleaded gasoline was $0.95 per gallon. In 2010, the same type of gasoline costs $3.00 per gallon. To determine the amount of change, we have to use the
a. moving average technique
b. geometric mean of 2 years
c. geometric mean rate of increase
d. weighted mean of the 2 years
Objective: Apply probability concepts related to discrete and continuous probability distributions.
2. Which of the following is a major difference between the binomial and the hypergeometric distributions?
a. The sum of the outcomes can be greater than 1 for the hypergeometric.
b. The probability of a success changes from trial to trial in the hypergeometric distribution.
c. The number of trials changes in the hypergeometric distribution.
d. The outcomes cannot be whole numbers in the hypergeometric distribution.
3. In which of the following distributions is the probability of a success...

...Exam 1
Chapter 1
* In statistics the group we wish to study is called the population
* A sample is a subset of the population which is used to gain insight about the population. Samples are used to represent a larger group, the population.
* • Descriptive statistics – the collection, organization, analysis, and presentation of data.
* Inferential statistics – uses descriptive statistics to estimate population parameters; an educated guess about the population based on sample data.
Chapter 2
* • During the experiment a treatment is applied to the experimental group.
* • The exact treatment will depend on the particular experiment.
* • The treatment changes the level of the explanatory variable in the experiment. The effect of the treatment can be measured by comparing the response variable in the control and experimental groups.
* Qualitative: Descriptions and Labels
* Quantitative: counts and measurements
* Discrete: Usually counts of things, restricted set of values
* Continuous: Usually measurements, data can take on any value in an interval
* Nominal measures offer names or labels for certain characteristics
* Ordinal data represents data in an associated order.
* If the data can be ordered and the arithmetic difference is meaningful, the data is interval.
* Ratio data has a meaningful zero point and the ratio of two data points is meaningful.
* Quantitative data...

... B.-1
C.5/6
D.4/6
Sue has 10 pictures but only has space in her apartment to hang 4 of them on a wall. The number of different arrangements of four pictures from a selection of ten pictures is:
A.5,040
B.24
C.151,200
D.210
The failure rate for taking the bar exam in Philadelphia is 41%. If 375 people take the bar exam, what is the mean for the number of failures?
A.138.1
B.171.2
C.90.7
D.153.8
A researcher surveyed college students to study their opinion about the proposed change in smoking rules. The researcher asked a group of 30 students: 12 of them supported the change, 13 of them did not, and 5 had no opinion. This is not a binomial model because...
A.30 students are not enough for a good sample
B....less than half of the students supported the change.
C....there are 3 possible outcomes, not 2.
D....the students who strongly supported the change and those who only mildly supported the change are counted the same.
The following data were obtained from a survey of college students. The variable X represents the number of non-assigned books read during the past six months.
x
0
1
2
3
4
5
P (X=x)
0.20
0.25
0.20
0.15
0.10
0.10
Find P( X < 3)
A.0.20
B.0.15
C.0.80
D.0.85
Given that Z is a standard normal random variable, P(-1.0 < Z < 1.5) is
A.0.9332
B.0.0919
C.0.8413
D.0.7745
The standard deviation of a...

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