Posted by **darrell** on Friday, January 6, 2012 at 3:03pm.

a population forms a normal distribution with a mean of u=80 and a standard deviation of o=15. for each of the following samples, compute the z-score for the sample mean and determine whether the sample mean is a typical, representative value or an extreme value for a sample of this size.

a. m=84 for n=9 scores

b. m=84 for n=100 scores

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