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VarianceRatioCI

VarianceRatioCI[list1, list2]
gives a confidence interval for the ratio of the population variances estimated from list1 and from list2.
  • 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-alpha)/2) where ratio=Variance[list1]/Variance[list2] and qi is the ith quantile of an F-ratio distribution with Length[list1]-1 numerator and Length[list2]-1 denominator degrees of freedom.
  • The following option can be given:
ConfidenceLevel0.95probability associated with a confidence interval
EXAMPLESCLOSE ALL
Basic Examples   (1)
Needs["HypothesisTesting`"]
The 95% confidence interval for the ratio of two population variances:
In[2]:=
Click for copyable input
Out[2]=
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