In order to test the hypothesis that a population $\sigma$ is a specified constant, it is never necessary to know the mean of the sample.

Name: In order to test the hypothesis that a population $\sigma$ is a specified constant, it is never necessary to know the mean of the sample.
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The hypothesis test for a population standard deviation ($\sigma$) typically involves using the chi-square distribution, which does not require the sample mean.

In Order to Test the Hypothesis That a Population σ\sigmaσ Is a Specified Constant, It Is Never Necessary to Know

In Order to Test the Hypothesis That a Population $\sigma$ Is a Specified Constant, It Is Never Necessary to Know