Chi Square Problems:

1) In a study of the effect of anxiety on the need for affiliation, participants were told either that they would either be giving a speech to a large audience of peers (high anxiety) or that they would be speaking to one experimenter (low anxiety). Subjects were then given a choice between waiting alone before speaking or waiting in the company of others. Below are the number of participants who chose to wait alone or with others in the high and low anxiety conditions. Test the null hypothesis that anxiety had no effect on whether people chose to wait alone or with others. (34 points)

High anxiety Low anxiety

Alone 14 21

With others 20 10

Research Problem

Statistical Hypotheses

Decision Rule

Calculations

Decision

Interpretation: