Basic Business Statistics, Student Value Edition (13th Edition)
Basic Business Statistics, Student Value Edition (13th Edition)
13th Edition
ISBN: 9780321946393
Author: Mark L. Berenson, David M. Levine, Kathryn A. Szabat
Publisher: PEARSON
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Chapter 10, Problem 1PS

If you have samples of n 1 = 12 and n 2 = 15 , in performing the pooled-variance t test, how many degrees of freedom do you have?

Expert Solution & Answer
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To determine

Determine the number of degrees of freedom.

Answer to Problem 1PS

The required degrees of freedom are 25.

Explanation of Solution

According to the provided information, there are two samples with n1=12andn2=15 .

To perform a pooled-variance t-test, the degrees of freedom can be calculated as:

Degrees of Freedomdf=n1+n22=12+152=25

Therefore, the degrees of freedom are 25.

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Chapter 10 Solutions

Basic Business Statistics, Student Value Edition (13th Edition)

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