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Hypothesis Testing:The Video Game Satisfaction Rating Case 2

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Recall that very satisfied customers give the XYZ-Box video game system a composite satisfaction rating that is at least 42.

a: Letting mu represent the mean composite satisfaction rating for the XYZ-Box, set up the null and alternative hypotheses needed if we wish to attempt to provide evidence supporting the claim that mu exceeds 42.

The mean and the standard deviation of a sample of n = 65 customer satisfaction ratings are x-bar = 4.295 and s = 2.6424. Use a critical value to test the hypotheses you set up in part a by setting alpha equal to .01. Also, interpret the p-value of .0025 for the test.

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Solution Summary

The solution provides step by step method for the calculation of testing of hypothesis. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.

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