Chapter 10, Problem 13P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

A researcher conducts an independent-measures study comparing two treatments and reports the *t* statistic t (25) = 2.071.

a. How many individuals participated in the entire study?

b. Using a two-tailed test with

c. Compute *r*^{2} to measure the percentage of variance accounted for by the treatment effect.

**a.**

To determine

**To Find:** The number of individuals participated in the study.

Explanation

**Given info:**

Independent-measures study is conducted, and results are reported as

**Calculation:**

The degree of freedom is calculated as:

**b.**

To determine

**To Find:** If there is a significant differencebetween the two treatmentsusing two-tailed test at

**c.**

To determine

**To Find:** The value of

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