F-test Calculator
Compute the F statistic (variance ratio) from two SDs.
Input Data
Input Group1 SD s₁.
Input Group2 SD s₂.
Results
2.25
F = s₁² / s₂².
At a glance:F-test Calculator: enter parameters to compute results; complements related calculators.
Formula
F = s₁² / s₂².
How to Use
- Enter both SDs s₁, s₂.
- It returns the variance ratio F.
Case Studies
s₁=3, s₂=2 → F=2.25
F = 9/4 = 2.25.
FAQ
What is the F-test for?
It tests equality of two variances; F far from 1 suggests different variances.
Related Tools
References
Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.