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Posted by on Friday, May 17, 2013 at 2:06am.

A. The GPAs of all 5540 students enrolled at a University have an approximately normal distribution with a mean of 3.02 and a standard deviation of 0.29. Let x be the mean GPA of a random sample of 48 students selected from this University. Find the mean and standard deviation of x , and comment on the shape of its sampling distribution.

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