These provide an overview of the key concepts and computations you will encounter in each chapter. Read the Objectives before you study each chapter to get a sense of what the chapter is about. Reread the Objectives after you have studied each chapter to ensure that you have fully mastered each Objective listed.
This chapter presents hypothesis-testing procedures for nominal variablesvariables whose values are categories. Accordingly, these procedures focus on the number of people in different categories, rather than on mean scores on some dimension. Two tests are described: the chi-square test for goodness of fit and the chi-square test for independence.
After reading this chapter, you should understand the following concepts and procedures: