data management 1

Complete chapter 2 problems 40 and 44 (all letters) from page 78 at the end of the chapter. Refer to the associated files, P02_30.xlsx for problem 40, and P02_44.xlsx for problem 44

40. The Wall Street Journal CEO Compensation Study

analyzed CEO pay from many U.S. companies with

fiscal year 2008 revenue of at least $5 billion that filed

their proxy statements between October 2008 and

March 2009. The data are in the file P02_30.xlsx.

(Note: This data set is a somewhat different CEO

compensation data set from the one used as an

example in the next chapter.)

a. Create histograms to gain a clearer understanding

of the distributions of annual base salaries and

bonuses earned by the surveyed CEOs in fiscal

2008. How would you characterize these

histograms?

b. Find the annual salary below which 75% of all

given CEO salaries fall.

c. Find the annual bonus above which 55% of all

given CEO bonuses fall.

d. Determine the range of the middle 50% of all

given total direct compensation figures. For the

50% of the executives that do not fall into this

middle 50% range, is there more variability in

total direct compensation to the right than to the

left?

44. The file P02_44.xlsx contains annual data on the

percentage of Americans under the age of 18 living

below the poverty level.

a. In which years of the sample has the poverty rate

for American children exceeded the rate that

defines the third quartile of these data?

b. In which years of the sample has the poverty rate

for American children fallen below the rate that

defines the first quartile of these data?

c. What is the typical poverty rate for American

children during this period?

d. Create and interpret a time series graph for these

data. How successful have Americans been

recently in their efforts to win “the war against

poverty” for the nation’s children?

e. Given that this data set is a time series, discuss

whether the measures requested in parts a-c are

very meaningful at the current time.