One-way ANOVA calculator
Paste group data. The calculator separates between-group and within-group variation.
Group summary
| Group | n | Mean | SD |
|---|---|---|---|
| Fill in the fields above — the result is computed on this page. | |||
How do I use this page?
- Paste at least two groups.
- Review means and standard deviations.
- Read F, df and p.
What this page does not do: ANOVA assumes independent observations, approximately normal residuals and similar group variances.
Further reading
Theory — what is one-way ANOVA?
One-way ANOVA tests the hypothesis that all population means of the compared groups are equal. The calculator takes pasted group data and separates its variation into a between-group part and a within-group part. The F statistic compares the variation among group means with the variation among observations within groups. The overall result alone does not show which specific groups differ — that requires further comparisons.
Frequently asked questions
Does ANOVA identify the different groups?
See also
A/B test calculator
Compare two proportions in an A/B test. Calculate conversion rates, difference, uplift, z score, p value and c
A/B test planning — sample size, MDE and duration
Plan a two-proportion experiment, estimate detectable effect and traffic duration.
ACF and PACF autocorrelation calculator
Calculate ACF and PACF across time-series lags. Review the chart, reference bounds and coefficient table.