   Chapter 3.2, Problem 4LCA Essentials of Statistics for the B...

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

Solutions

Chapter
Section Essentials of Statistics for the B...

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

A sample of n = 4 scores has a mean of 9. If one person with a score of X = 3 is removed from the sample, what is the value for the new sample mean?

To determine

To Find: The value of new sample mean when a score with a value X=3 is removed.

Explanation

Given info:

A sample of 4 scores has mean 9 and a value X=3 is removed from the sample.

Calculations:

The formula for population mean is:

M=XnX=M×n

Substitute the values M=9 and n=4 in the formula

X=9×4=36

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