What is the chi-squared test? The chi-squared test, often written as χ 2 test, is a statistical hypothesis test used in the analysis of categorical variables to determine whether observed data are ...
WARNING: 50% of the cells have expected counts less than 5. (Asymptotic) Chi-Square may not be a valid test.
The contingency table in Output 28.5.1 displays eye and hair color in the order in which they appear in the Color data set. The Pearson chi-square statistic in Output 28.5.2 provides evidence of an ...
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