The test statistic used to test hypotheses about the population variance is , which is chi-squared distributed with n -1 degrees of freedom when the population is normally distributed with variance equal to .

Question

The test statistic used to test hypotheses about the population variance  is  , which is chi-squared distributed with n -1 degrees of freedom when the population is normally distributed with variance equal to  .

Quizplus · Accepted Answer

This is true according to the chi-squared test for variance when the population is normally distributed. The test statistic follows a chi-squared distribution with n-1 degrees of freedom.

The Test Statistic Used to Test Hypotheses About the Population