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Glossary Quality Control / Term

Chi-Square Statistic

A statistic that lets you compare observed to expected frequencies. If none of the expected frequencies is too small, the statistic follows a chi-square distribution. A large chi-square statistic leads to a conclusion that two distributions are different. A small chi-square statistic leads to a conclusion that two distributions are similar. Also known as a Portmanteau statistic.

Permanent link Chi-Square Statistic - Modification date 2019-12-08 - Creation date 2019-12-06


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