A stock analyst wondered whether the mean rate of return of financial, energy, and utility stocks differed over the past 5 years. He 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 accompanying table (in percent). Complete parts (a) through (d) below. Click the icon to view the data table. Use technology to find the F-test statistic for this data set. Fo =(Round to two decimal places as needed. ) Determine the P-value and state the appropriate conclusion below Since the P-value is , there enough evidence to reject the null hypothesis. Thus, we conclude that the mean rates of return are different at the a = 0.05 level of significance. (Round to three decimal places as needed.) (d) Draw boxplots of the three sectors to support the results obtained in part (c). Choose the correct graph below O A. O B. O c. Utilities Utilities Energy Q Energy Utilities Energy Financial Financial Financial 3 13 23 3 13 23 3 13 23 Rate of Return (%) Rate of Return (%) Rate of Return (%) Click to select your answer(s)