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August 29, 2015

Homework Help: Statistics

Posted by Lissa on Friday, January 25, 2013 at 11:57am.

A college’s data about the incoming freshmen indicates that the mean of their high school GPAs was 3.4, with a standard deviation of 0.35; the distribution was roughly mound-shaped and only slightly skewed. The students are randomly assigned to freshman writing sem- inars in groups of 25. What might the mean GPA of one of these seminar groups be? Describe the appropriate sam- pling distribution model—shape, center, and spread— with attention to assumptions and conditions. Make a sketch using the 68–95–99.7 Rule

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