Posted by **Tina** on Wednesday, February 27, 2013 at 10:55pm.

Sampling Distribution

Complete solutions and illustrations are required.

5.The standard deviation of a variable is 15. If a sample of 100 individuals are selected compute for

a.The standard error of the mean.

b.What sample size is necessary to double the standard error of the mean?

c.What sample size is needed to cut the standard error of the mean in half?

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