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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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anushaz06 anushaz06
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2 years ago
Nintendo Sony would like to test the hypothesis that a difference exists in the average age of users of a Wii, a PlayStation, or an Xbox console game. The following data represent the age of a random sample of Wii, PlayStation, and Xbox users.



The grand mean for these observations is ________.

▸ 30.0

▸ 30.9

▸ 31.3

▸ 31.8
Textbook 
Business Statistics

Business Statistics


Edition: 2nd
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sleinhisleinhi
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