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Hypothesis Testing Package Symbol

VarianceCI

VarianceCI[list]
gives a confidence interval for the population variance estimated from list.

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

VarianceCI[list] gives a confidence interval {min, max} for the population variance estimated from list.

For confidence level , min=var df/q_(1+)/2 and max=var df/q_(1-)/2 where var=Variance[list], df=Length[list]-1, and q_i is the i quantile of a ² distribution with df degrees of freedom.

0.95

probability associated with a confidence interval

A 95% confidence interval for the population variance:

Needs["HypothesisTesting`"]

A 95% confidence interval for the population variance:

A 99% confidence interval: