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Publication date: 06/21/2023

Test Std Dev

Use the Test Std Dev option in the Distribution platform to perform a one-sample test for the standard deviation. You can use this option repeatedly to test different values. Each time you test the standard deviation, a new Test Standard Deviation report appears.

Test Statistic

Provides the value of the chi-square test statistic. See Statistical Details for the Standard Deviation Test.

Min PValue

The probability of obtaining a more extreme chi-square value when the population standard deviation does not differ from the hypothesized value. See Statistical Details for the Standard Deviation Test.

Prob>ChiSq

The probability of obtaining a chi-square value greater than the computed sample chi-square when the population standard deviation is not different from the hypothesized value. This is the p-value for observed significance of a one-tailed t test.

Prob<ChiSq

The probability of obtaining a chi-square value less than the computed sample chi-square when the population standard deviation is not different from the hypothesized value. This is the p-value for observed significance of a one-tailed t test.

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