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Hypothesis Testing Package Symbol

VarianceRatioCI

VarianceRatioCI[list₁, list₂]
gives a confidence interval for the ratio of the population variances estimated from list₁ and from list₂.

To use VarianceRatioCI, you first need to load the Hypothesis Testing Package using Needs["HypothesisTesting`"].

VarianceRatioCI[list₁, list₂] gives a confidence interval {min, max} for a ratio of the population variances estimated by Variance[list₁] and Variance[list₂].

For confidence level , min=ratio/q_(1+)/2 and max=ratio/q_(1-)/2 where ratio=Variance[list₁]/Variance[list₂] and q_i is the i quantile of an F-ratio distribution with Length[list₁]-1 numerator and Length[list₂]-1 denominator degrees of freedom.