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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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Version 6.15
Published 18-Apr-2023
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