Even You Can Learn Statistics A Guide for Everyone Who Has Ever Been Afraid of Statistics

Chapter 9. Hypothesis Testing: Chi-Square Tests and the One-Way Analysis of Variance (ANOVA)

• 9.1 Chi-Square Test for Two-Way Cross-Classification Tables

• 9.2 One-Way Analysis of Variance (ANOVA): Testing for the Differences Among the Means of More Than Two Groups

• Important Equations

• One-Minute Summary

• Test Yourself

In Chapter 8, you learned about two specific two-sample hypothesis tests that are used for analyzing the data of two groups. Recall from Chapter 7, hypothesis testing can also be done for multiple groups—that is, more than two groups of data. In this chapter, you will learn about the following tests that you can use when you have multiple groups:

• The chi-square (χ²) test for categorical variables that determine whether there is a difference ...