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# Statistics: Test hypothesis of claim for XYZ-Box video game system ratings

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The Video Game Satisfaction Rating Case

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 use 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.

A. Letting /u 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 /u exceeds 42.

https://brainmass.com/statistics/hypothesis-testing/the-video-game-satisfaction-rating-case-368216

#### Solution Preview

Null hypothesis H0: Mean composite satisfaction rating for the XYZ-Box is equal to 42.
Alternative hypothesis H1: Mean composite satisfaction rating for the XYZ-Box is greater than 42.

Symbolically the null and alternative hypothesis can be expressed as follows:
H0: μ = 42; H1: μ > 42, ...

#### Solution Summary

The solution contains hypothesis testing for XYZ-Box video game system ratings. Please provide step by step aclculations.

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