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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

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BuyFindarrow_forward

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

For a sample with a standard deviation of s = 8, a score of X = 65 corresponds to z = 1.50. What is the sample mean?

To determine

To find: The sample mean.

Explanation

Given info:

The data represent the standard deviation, z-score and x-score value for the sample. The sample standard deviation s=8, score of X=65 and z-score=1.50.

Calculation:

The general formula of z score to find the sample mean is,

z=Xμsμ

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