F-test
Ratio of variances
An F-test is a statistical test that compares variances to determine whether groups differ significantly.
Named for the F-distribution it uses, the test appears throughout statistical analysis—in ANOVA to compare group means, in regression to assess model fit, and when checking whether two samples have equal variance.
The F-test showed the treatment groups differed significantly.
hypothesis
Quality of mattering
variance-comparison
State of sameness throughout
- spreadTo distribute widely
- dispersionScattering across space
- variabilityTendency to change
ANOVA
Permitting single direction travel
- two-wayOperating in both directions
- sphericityDegree of roundness
significance
Quality of mattering
homogeneity
State of sameness throughout
- spreadTo distribute widely
- dispersionScattering across space
- variabilityTendency to change
one-way
Permitting single direction travel
- two-wayOperating in both directions
- sphericityDegree of roundness