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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 mean of M = 85, a score of X = 80 corresponds to z = –0.50. What is the standard deviation for the sample?

To determine

To Find: The standard deviation for the sample.

Explanation

Given info:

The value of X=80 corresponds to z=0.50 and the mean of the sample is M=85.

Calculation:

The formula for calculating the standard deviation is,

s=XMz

Substitute 80 for X, 85 for M and -0

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