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A stock analyst wants to determine whether there is a difference in the mean rate of return for three types of stock: utility, retail, and banking stocks. The following output is obtained:
Analysis of Variance SourceSSDFMSFp-Value Factor88.98 244.4912.600.001 Error49.35 143.53 Total138.3316
a. Using the 0.10 level of significance, is there a difference in the mean rate of return among the three types of stock?
(Click to select) Yes, there is a difference in the mean rate of return among the three types of stock. No, there is no difference in the mean rate of return among the three types of stock.
b. Suppose the null hypothesis is rejected. Can the analyst conclude that there is a difference between the mean rates of return for the utility and the retail stocks?
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