As you read the chapter, consider the following questions:
16.1 What is the difference between a parametric and a nonparametric test?
16.2 What does it mean that a nonparametric test is less powerful than a parametric test?
16.3 How can we test relationships across categorical variables?
16.4 What is the expected frequency?
16.5 What does a chi-square test tell us about relationships between categorical variables?