Setting Up a Chi-Square Test for Homogeneity or Independence

AP Statistics· difficulty 3/5

Researchers sample 200 from California, 200 from Texas, and 200 from New York to compare their support across four political stances.

Which test should be used and what are df?

Explanation

Three separate population samples and one categorical variable: chi-square test of homogeneity. df = (3-1)(4-1) = 6.

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