Chapter 6 Inference for Categorical Data
In this chapter, we apply the methods and ideas from Chapter 5 in several contexts for categorical data. We’ll start by revisiting what we learned for a single proportion, where the normal distribution can be used to model the uncertainty in the sample proportion. Next, we apply these same ideas to analyze the difference of two proportions using the normal model. Later in the chapter, we apply inference techniques to contingency tables; while we will use a different distribution in this context, the core ideas of hypothesis testing remain the same.
