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: Do these data indicate that the population mean percentage difference in corporate revenue (row B) is different from the population mean percentage increase in CEO salary? Use a 1% level of significance.     (A) Are the data statistically significant at level α? Will you reject or fail to reject the null hypothesis?      Since the interval containing the P-values has values that are larger than the level of significance, the data are not statistically significant and so we fail to reject the null hypothesis.       (a)Since the interval containing the P-values has values that are larger than the level of significance, the data are statistically significant and so we fail to reject the null hypothesis.   (b)Since the interval containing the P-values has values that are smaller than the level of significance, the data are statistically significant and so we fail to reject the null hypothesis.   (c)Since the interval containing the P-values has values that are larger than the level of significance, the data are not statistically significant and so we reject the null hypothesis.   (d)Since the interval containing the P-values has values that are smaller than the level of significance, the data are not statistically significant and so we fail to reject the null hypothesis.   (B)What does the area of the sampling distribution corresponding to your P-value look like?          (a)Area shaded to the left of the test statistic       (b)Area shaded to the left of the p value and to the right of the p value       (c)Area shaded to the right of the test statistic       (d)The area not including the right tail and the left tail       (e) Area shaded to the right of the positive value of the test statistic and to the left of negative value of the test statistic   (C)Will you use a left tailed, right tailed, or two tailed test?        Left tailed test       Right tailed test       Two tailed test

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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: Do these data indicate that the population mean percentage difference in corporate revenue (row B) is different from the population mean percentage increase in CEO salary? Use a 1% level of significance.
 
 
(A) Are the data statistically significant at level α? Will you reject or fail to reject the null hypothesis? 
 
 
Since the interval containing the P-values has values that are larger than the level of significance, the data are not statistically significant and so we fail to reject the null hypothesis.
 
 
 
(a)Since the interval containing the P-values has values that are larger than the level of significance, the data are statistically significant and so we fail to reject the null hypothesis.
 
(b)Since the interval containing the P-values has values that are smaller than the level of significance, the data are statistically significant and so we fail to reject the null hypothesis.
 
(c)Since the interval containing the P-values has values that are larger than the level of significance, the data are not statistically significant and so we reject the null hypothesis.
 
(d)Since the interval containing the P-values has values that are smaller than the level of significance, the data are not statistically significant and so we fail to reject the null hypothesis.
 
(B)What does the area of the sampling distribution corresponding to your P-value look like? 
 
 
 
 
(a)Area shaded to the left of the test statistic
 
 
 
(b)Area shaded to the left of the p value and to the right of the p value
 
 
 
(c)Area shaded to the right of the test statistic
 
 
 
(d)The area not including the right tail and the left tail
 
 
 
(e) Area shaded to the right of the positive value of the test statistic and to the left of negative value of the test statistic
 
(C)Will you use a left tailed, right tailed, or two tailed test? 
 
 
 
Left tailed test
 
 
 
Right tailed test
 
 
 
Two tailed test
 
(D)What is the value of the test statistic? 
 
 
 
 
-1.326
 
 
 
.2549
 
 
 
.5412
 
 
 
1.240
 
B: Percent for company 6
9.
17
8
10
24
16
18
A: Percent for CEO
1
19
11
23
11
12
colN
Transcribed Image Text:B: Percent for company 6 9. 17 8 10 24 16 18 A: Percent for CEO 1 19 11 23 11 12 colN
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