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[See] A population forms a normal distribution with a mean of μ=80 and a standard deviation of σ=15. For each of the following samples, compute

Question: A population forms a normal distribution with a mean of $\mu=80$ and a standard deviation of $\sigma=15$. 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.

$M=84$ for $n=9$ scores
$M=84$ for $n=100$ scores

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[See] A population forms a normal distribution with a mean of μ=80 and a standard deviation of σ=15. For each of the following samples, compute

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