Chapter 7, Problem 9P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

For a population with a mean of μ = 80 and a standard deviation of σ = 12, find the z-score corresponding to each of the following samples.

**a.***M*= 83 for a sample of*n*= 4 scores**b.***M*= 83 for a sample of*n =*16 scores**c.***M*= 83 for a sample of*n*= 36 scores

**a.**

To determine

The *z*-score for given sample.

Explanation

**Given info:**

The numbers of scores in each sample are

**Calculation:**

If *n* represents numbers of scores in each sample. Let *X* represents sample mean. Then,

The *z*-score corresponding to the sample mean is given by:

**b.**

To determine

The *z*-score for given sample.

**c.**

To determine

The *z*-score for given sample.

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