A normal distribution has a mean of mu =60 and a standard deviation of sigma = 12. For each of the following samples, compute the Z-score for the sample mean, and determine wheather the sample mesn is...

A normal distribution has a mean of mu =60 and a standard deviation of sigma = 12. For each of the following samples, compute the Z-score for the sample mean, and determine wheather the sample mesn is typical, representative, value or an extreme value for a sample of this size.

A) M= 64 for n= 4 scores

Z= _____                 ____________ value

B) M=64 for n= 9 scores

Z=_____                 _____________value

C) M= 66 for n=16 scores

Z=______               _____________value

D) M= 66 for n= 36 scores

Z=______              ______________value