Chapter 15, Problem 18P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

Gender differences in dream content are well documented (see Winget & Kramer, 1979). Suppose a researcher studies aggression content in the dreams of men and women. Each participant reports his or her most recent dream. Then each dream is judged by a panel of experts to have low, medium, or high aggression content. The observed frequencies are shown in the following matrix:

Is there a relationship between gender and the aggression content of dreams? Test with α =.01.

To determine

**To check:** Whether there is a relationship between gender and the aggression content of dreams for the given question.

Explanation

**Given info:**

A sample of 160 students were involved in a study based on “the relation between the gender and the IQ level”. Use

**Calculations:**

Step 1: Null Hypothesis and Alternate Hypothesis are:

Step 2: For the given sample, degrees of freedom equals:

With

Step 3:

The formula to calculate expected frequency is:

Substitute

For the category females, the expected frequencies are:

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