Inference for categorical data (chi-square tests)

Lessons
Chi-square goodness-of-fit tests
Chi-square tests for homogeneity and association/independence
About this unit
Chi-square tests are a family of significance tests that give us ways to test hypotheses about distributions of categorical data. This topic covers goodness-of-fit tests to see if sample data fits a hypothesized distribution, and tests for independence between two categorical variables.