Topic: Unit 3: Inference for Categorical Data: Proportions

Calculating the Chi-Square Statistic by Hand

What To Do When Expected Counts Are Too Small

Building the Full Expected Counts Table

What Expected Counts Represent Under Independence

Setup and Plan for a Chi-Square Test

Independence and 10 Percent Condition for Chi-Square

The Chi-Square Statistic Formula

Independence Versus Homogeneity: Choosing the Right Test

Stating Hypotheses for a Test of Independence

Chi-Square Test for Independence: Purpose and Setting