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Essentials of Statistics for the B...

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

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Section
BuyFindarrow_forward

Essentials of Statistics for the B...

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

In a distribution with σ = 12, a score of X = 56 corresponds to z = –0.25. What is the mean for this distribution?

To determine

To Find: The mean for the population.

Explanation

Given Info:

The X=56 corresponds to z=0.25. The standard deviation of the population is σ=12

Calculation:

The formula for calculating the standard deviation is,

σ=Xμzμ=Xσz

Substitute 56 for X, 12 for σ and -0

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