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In: Statistics and Probability

Are America's top chief executive officers (CEOs) really worth all that money? One way to answer...

Are America's top chief executive officers (CEOs) really worth all that money? One way to answer this question is to look at row B, the annual company percentage increase in revenue, versus row A, the CEO's annual percentage salary increase in that same company. Suppose that a random sample of companies yielded the following data:

B: Percent increase

for company

38

9

28

29

19

9

15

30

A: Percent increase

for CEO

35

11

19

19

17

1

11

34

Do these data indicate that the population mean percentage increase in corporate revenue (row B) is different from the population mean percentage increase in CEO salary? Assume that the distribution of differences is approximately normal, mound-shaped and symmetric. Use a 10% level of significance. Find (or estimate) the P-value.

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