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The Excel attachment below contains the hiring salaries (in $1000) of 15 pairs of recent men...

The Excel attachment below contains the hiring salaries (in $1000) of 15 pairs of recent men and women MBA graduates. We wish to use a significance level of 0.01 to test the hypothesis that the starting salaries for male and female graduates are different. What is the P-value of the test?

A. 0.009

B. 0.076

C. 0.038

D. 0.005

Men women
72 65
66 71
69 60
71 62
71 73
67 56
77 71
64 64
80 75
69 70
68 59
67 73
64 56
71 57
74 55
math   Statistics-And-Probability   
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Answer #1

HO: Average salaries for male and female are same H1: Average salaries for male and female are Different > x=scan(clipboard); Read 15 items [1] 72 66 69 >y-scan(clipboard)>y Read 15 items [1] 65 71 60 62 73 56 71 64 75 70 59 73 56 57 55 > ttest(x,y,paired,confidence-level-O.01) 71 71 67 77 64 80 69 68 67 64 71 74 Paired t-test data: x and y t 3.027, df 14, p-value 0.009054 alternative hypothesis: true difference in means is not equal to 0 95 percent confidence interval 1.612661 9.454005 ample estimates: mean of the differences 5.533333 P-value o.009 # option 1 st is coreect that p-value for this paired t test is 0.009

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