Identify an appropriate testing method for comparing distributions in two-way tables of categorical data including the populations and variables.
- To determine whether the distributions of a categorical variable for two or more populations are different, the appropriate test is the chi-square test for homogeneity.
- A chi-square test for homogeneity should reference the categorical variable and the populations in context.
- To determine whether row and column variables in a two-way table of categorical data might be associated in the single population from which the data were sampled, the appropriate test is the chi-square test for independence.
- A chi-square test for independence should reference the categorical variables and the population in context.