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Sample Mean - Typical or Extreme Value

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A normal distribution has a mean of u=60 and a standard deviation of o=18. For each of the following samples, compute the z scores for the sample mean, and determine whether the sample mean is a typical, representative value or an extreme value for the sample of this size.
M= 67 for n=4 scores
z=_____, which is ______ value for a sample of this size.
M=67 n=36 scores
z=______ which is _____value for a sample of this size

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Solution Summary

For given data estimated whether sample mean is extreme or typical value for given population mean value

Solution Preview

z = |M-u|/(o/sqrt(n))

u = 60
o = 18

M = 67, n= 4
z = ...

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