Homework Help: statistics

Posted by Jay on Wednesday, February 1, 2012 at 9:53pm.

Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not?

statistics - Ms. Sue, Wednesday, February 1, 2012 at 10:07pm
No. Three is not a reasonable-sized sample.

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