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FRatioCI

FRatioCI[ratio, n, m]
gives a confidence interval based on an F-ratio distribution with n and m degrees of freedom.
  • FRatioCI[ratio, n, m] gives a confidence interval {min, max} for a ratio of variances estimated by ratio.
  • For confidence level Alpha, min=ratio/q(1+Alpha)/2 and max=ratio/q(1-Alpha)/2 where qi is the i^(th) quantile of an F-ratio distribution with n numerator and m denominator degrees of freedom.
  • FRatioCI is the confidence interval for a ratio of population variances based on sample variances estimated from samples of size n+1 and m+1.
  • The following option can be given:
ConfidenceLevel0.95probability associated with a confidence interval
Needs["HypothesisTesting`"]
A 95% confidence interval based on an F-ratio distribution:
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