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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 population with a mean of μ = 70, a score X = 64 corresponds to z = 1.50. What is the population standard deviation?

To determine

To find: The population standard deviation.

Explanation

Given info:

The data represent the mean, z-score and X-score value for the population. The sample mean μ=70, score of X=64 and z-score=1.50.

Calculation:

The general formula for z score to find the population standard deviation is,

z=Xμσσ=Xμ

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