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A stock analyst wondered whether the mean rate of return of​ financial, energy, and utility stocks...

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Statistics

A stock analyst wondered whether the mean rate of return of​financial, energy, and utility stocks differed over the past 5years. He obtained a simple random sample of eight companies fromeach of the three sectors and obtained the​ 5-year rates of returnshown in the accompanying table​ (in percent). Complete parts​ (a)through​ (d) below.

Are the mean rates of return different at

α=0.05 level of​ significance?

Use technology to find the​ F-test statistic for this dataset.

Find the P=Value

Financial Energy Utilities

10.73 12.89 11.88

15.05 13.96 5.76

17.01 6.43 13.46

5.07 11.19 9.90

19.59 18.93 3.95

8.16 20.73 3.44

10.38 9.60 7.11

6.52 17.40 15.70

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