Statistical Details for the Standard Deviation Test

The test statistic in the standard deviation test in the Distribution platform is computed as follows:

The test statistic is distributed as a chi-square variable with n - 1 degrees of freedom when the population is normal.

The Min PValue is the p-value of the two-tailed test, and is calculated as follows:

2*min(p1,p2)

where p1 is the lower one-tail p-value and p2 is the upper one-tail p-value.

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