This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)

VarianceRatioTest

VarianceRatioTest[list1, list2, r]
performs a test with null hypothesis 12/22=r.
  • VarianceRatioTest[list1, list2, r] gives a p-value for the test that the ratio of the variances 12 and 22 of the populations from which list1 and list2 were sampled is significantly different from r.
  • VarianceRatioTest is based on an F-ratio distribution with Length[list1]-1 and Length[list2]-1 degrees of freedom.
  • The following options can be given:
FullReportFalsewhether to include detailed information about a test
SignificanceLevelNonesignificance level of the test
TwoSidedFalsewhether to perform a two-sided test
  • With the option FullReport->True, VarianceRatioTest also returns the ratio of sample variances, the test statistic, and the distribution used to generate the p-value.
Needs["HypothesisTesting`"]
A test of the ratio of population variances against 2:
In[2]:=
Click for copyable input
Out[2]=