One-Way ANOVA Calculator

ANOVA tests whether 3+ group means are equal using the F-statistic.

What this calculator does

If F > F-critical (p < 0.05), at least one group mean is significantly different.

Frequently asked questions

When should I use ANOVA instead of t-test?

Use ANOVA when comparing 3+ groups. t-test is for 2 groups. ANOVA controls Type I error inflation.