Tests for the dispersion parameter of a distribution

Tests for the dispersion parameter of a distribution and their properties and assumptions.

Test	Purpose
X²	Test if the variance/standard deviation is equal to a hypothesized value. Assumes the population is normally distributed. When this assumption is not true, you should be cautious of using the test, as it is extremely sensitive to deviations from normality.

Related concepts

Parameter hypothesis test

Related tasks

Testing distribution parameters

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