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One-Way ANOVAStatLens

Choose a dataset:

Edit or paste data (CSV with a grouping column and a numeric column):

Open a CSV, TSV, or JSON file:

Number of groups:

Grouping variable: Response variable:

Parameters

H₀: μ₁ = μ₂ = … = μ_k (all group means are equal)

H_a: At least one μ_i differs

Discernibility level (α)

Select a dataset or enter summary statistics.

Which groups differ? Post-hoc pairwise comparisons

Keyboard Shortcuts

Load data or enter group summary statistics. The F-test assesses whether all group means are equal.

A note on wording: α is the discernibility level here, following the course text. Many books and exercise sets call the same number the significance level — they mean the same thing.

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