Asked by Statistics

Recall that “very satisfied” customers give the XYZ-Box video game system a rating that is at least 42. Suppose that the manufacturer of the XYZ-Box wishes to us the random sample of 65 satisfaction ratings to provide evidence supporting the claim that the mean composite satisfaction rating for the XYZ-Box exceeds 42.
Answered by PsyDAG
Need mean and standard deviation of sample. What level of significance (P = .05, P = .01) are you using?

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