Hartley's Fmax Test Calculator
Test for homogeneity of variances using the ratio of maximum to minimum variance.
Group Data
Hartley's Fmax Statistic
5.4772
Variances Are Homogeneous
maxMax Variance
108.2667
minMin Variance
19.7667
cvCritical Value
10.80
kGroups (k)
3
Group Statistics
| Group | n | Var | SD | CV% |
|---|---|---|---|---|
| Group 1 | 6 | 19.77 | 4.45 | 15.4 |
| Group 2 | 6 | 108.27 | 10.41 | 30.9 |
| Group 3 | 6 | 107.37 | 10.36 | 31.2 |
Formula
Fmax = max(s^2) / min(s^2)
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.