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Chi-square test

The chi-square test of independence is a nonparametric hypothesis test that examines whether two categorical variables are associated by comparing observed and expected frequencies in a cross-tabulation. It rests on the chi-square criterion introduced by Karl Pearson in 1900.

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Chi-square test of independence

Taksonoomiline meetodikirje · hypothesis-test / statistics

Pearson, K. (1900). On the criterion that a given system of deviations from the probable in the case of a correlated system of variables is such that it can be reasonably supposed to have arisen from random sampling. Philosophical Magazine, 50(302), 157–175. · DOI 10.1080/14786440009463897
Agresti, A. (2007). An Introduction to Categorical Data Analysis (2nd ed.). Wiley. · ISBN 978-0471226185

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Same method familyCramer's Vmachine-suggested · Relational suggestion, not evidence.Same method familyMcNemar's testmachine-suggested · Relational suggestion, not evidence.