Reference no: EM132096723

Problem: If I wondered whether the mean rate of return of? financial, energy, and utility stocks differed over the past 5 years. I obtained a simple random sample of eight companies from each of the three sectors and obtained the? 5-year rates of return shown in the table? below (in percent). What formula would I use to state the null and alternative hypotheses, and if the normal probability plots indicate that the sample data come from normal populations, would the requirements to use the? one-way ANOVA procedure? satisfied? What formula would I use to determine if the mean rates of return different at the α=0.05 level of? significance and find the? F-test statistic for this data set and also the P-value?

Financial               Energy                Utilities

10.73                  12.89                   11.88

15.12                  13.91                    5.86

17.01                   6.43                    13.67

5.03                   11.23                    9.90

19.50                  18.93                    3.95

8.21                    20.73                   3.44

10.45                   9.60                     7.11

6.52                   17.40                   15.70