A normal distribution has a mean of = 60 and a standard deviation of =

Question:

A normal has a mean of µ = 60 and a standard deviation of σ = 18. 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. µ = 67 for n = 4 scores
b. µ = 67 for n = 36 scores
Distribution
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