11: Chi-Square Tests (not covered in EC225) — Read

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11.1: Chi-Square Distribution
A χ2-distribution (chi-square, pronounced “ki-square”) is another special type of distribution for a continuous random variable. The sampling distribution for a variance and standard deviation follows a chi-square distribution.
11.2: Goodness of Fit Test
The χ2 goodness-of-fit test can be used to test the distribution of three or more proportions within a single population.
11.3: Test for Independence
Using the chi-square test for independence to test the independence of two categorical variables. Includes worked examples.
11.4: Chapter 11 Formulas
11.5: Chapter 11 Exercises

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