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Glossary Statistics / Term

Z statistic

A Z statistic is a test statistic whose distribution under the null hypothesis has expected value zero and can be approximated well by the normal curve. Usually, Z statistics are constructed by standardizing some other statistic. The Z statistic is related to the original statistic by

Z = (original − expected value of original)/SE(original).

Permanent link Z statistic - Creation date 2021-08-07


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