a) yes or no

the blue circled, options are: is / is not

 

 
 

A stock analyst wants to determine whether there is a difference in the mean return on equity for three types of stock: utility, retail, and banking stocks. The following output is obtained: Analysis of Variance Source DF Ad SS Ad MS F-Value P-Value Factor 2 303.097 151.848 Error 12 331.381 27.615 Total 14 636.077 Means Factor N Mean StDev 5.50 0.0202 bank 5 5.318 utility 5 9.3160 15376 3.904 95% C (0.198, 10.430) (4.1956, 14.4364) retail 6 16.212 8.077 (11.092,21.302) Pooled StDev-525500 Fisher Individual Tests for Differences of Means Difference of Levels Difference of Means SE of Difference 95% CI T-Value Adjusted PValue uity-bank 3.998 retai-bank 10.894 3324 3.324 (3.243, 11.239 1.20 0.2522 3.653, 16.135) 3.28 0.0066 retail-utity 6.896 3.324 10.345, 14.137) 2.07 0.0602 utility-bank Fisher Individual 95% Cls Differences of Means for bank, utility, retail retail-bank retail-utility 10 15 20 If an interval does not contain 0, the corresponding means are significantly different. Required: a. Using the 0.05 level of significance, is there a difference in the mean return on equity among the three types of stock? there is a difference in the mean return on equity among the three types of stock.