SOCIAL SCIENCE RESEARCH

Assignment #7

Instructions:Please read each question carefully. Show your work where necessary. Make sure your handwriting is legible. You will need to take a picture or scan your work when you upload it to CougarView. Please round your answers to the nearest tenths place (0.00).

1. Best Paid CEOs. Forbes magazine conducts an annual survey of the salaries of chief executive officers. In addition to salary information, Forbes collects and reports personal data on CEOs, including in their level of education and age. Do most CEOs have advanced degrees such as master's degrees or doctorates? The data in the table below represent the highest degree earned by each of the top 40 best-paid CEOs of 2010. Use a graphical method to summarize the highest degree earned by these CEOs. What is your opinion about whether or not most CEOs have advanced degrees? (4 points)

MBA	PhD	Bachelors	Bachelors
PhD	Bachelors	Bachelors	MBA
None	Law	Bachelors	Bachelors
Bachelors	MBA	None	Master's
Bachelors	MBA	MBA	MBA
PhD	Bachelors	None	None
Bachelors	MBA	MBA	MBA
Masters	Bachelors	Law	Bachelors
MBA	MBA	None	Bachelors
Bachelors	None	Law	Masters

1. Calculate the mean, median, and mode for each of the following samples (4 points)
   1. 7,-2,3,3,0,4

1. 2,3,5,3,2,3,4,3,5,1,2,3,4

1. 51,50,47,50,48,41,59,68,45,37

1. Determine if the data sets are symmetric or skewed. Would you expect the data sets that follow to possess relative frequency distributions that are symmetric, skewered to the right, or skewed to the left? (4 points)
   1. The salaries of all persons employed by a private prison company
   2. The grades on an easy test
   3. The grades on a difficulty test
   4. The amount of time offenders spend in prison for violent offenses
   5. The ages of most of the inmates in prison

1. Many offenders do not have the appropriate literacy scores required for most jobs. At James River prison, offenders are assigned to a GED course to improve their reading level and comprehension. The number of books read by each offender and their course grade are displayed in the table below. (6 points)

Number of Books	Course Grade
53	A
42	A
40	A
40	B
39	A
34	A
34	A
30	A
28	B
24	A
22	C
21	B
20	B
16	B

1. Find the mean, median, and mode of the number of books read.

1. What do the mean and median indicate about the skewness of the distribution of the data?

1. For this exercise, use the following set of 16 scores (ranked) that consists of income levels ranging from about $50,000 to about $200,000. What is the best measure of central tendency and why? (2 points)

$199,999

$98,789

$90,878

$87,678

$87,245

$83,675

$77,876

$77,743

$76,564

$76,465

$75,643

$66,768

$65,654

$58,768

$54,678

$51,354