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anushaz06 anushaz06
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Posts: 94
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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
Author:
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sleinhisleinhi
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2 years ago
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anushaz06 Author
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2 years ago
this is exactly what I needed
wrote...

Yesterday
Just got PERFECT on my quiz
wrote...

2 hours ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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