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February 28, 2015

February 28, 2015

Posted by **jill** on Sunday, March 6, 2011 at 9:21pm.

- statistics -
**kim**, Sunday, April 24, 2011 at 9:07amPOST YOUR QUESTIONS AT ww w.ac eyou rcoll egec las sses . c o m

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**Ivette**, Sunday, August 7, 2011 at 6:20pmDo students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other students. The result for University X was a mean of 5 hours and an estimated population variance of 2 hours; for University Y, M = 4, S2 = 1.5; and for University Z, M = 6, S2 = 2.5. What should you conclude? Use the .05 level.

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