Read the following case and test the hypothesis:

Sample satisfaction scores about the two retailers by the customers are shown below. In the report, 100 means the respondent is completely satisfied. Assume that a population standard deviation of 12 is a reasonable assumption for both retailers. Conduct the hypothesis test and report the p-value. At a .05 level of significance what is your conclusion?

Retailer ARetailer BSample size =25Sample size =30Sample mean =79Sample mean =71

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