A condition of using the chi-squared test statistic for testing the variance is that the population random variable have a normal distribution.

Name: A condition of using the chi-squared test statistic for testing the variance is that the population random variable have a normal distribution.
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The chi-squared test for variance assumes that the data are sampled from a population that follows a normal distribution, as the test statistic is derived under this condition.

A Condition of Using the Chi-Squared Test Statistic for Testing