Equivalence / Non-inferiority (TOST) — free, runs in your browser
Prove two groups are practically equivalent or not inferior: pre-set an equivalence margin ±Δ, then run two one-sided tests (TOST). Gives the TOST p-val… Computed in your browser — no data uploaded.
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Common questions
When should I use Equivalence?
Prove two groups are practically equivalent or not inferior: pre-set an equivalence margin ±Δ, then run two one-sided tests (TOST). Gives the TOST p-value, (1−2α) confidence interval and an equivalence/non-inferiority verdict. P>0.05 ≠ equal.
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All calculations run entirely in your browser. No data is sent to any server. You can even use the tool offline after the page loads.
Run Equivalence now
Prove two groups are practically equivalent or not inferior: pre-set an equivalence margin ±Δ, then run two one-sided tests (TOST). Gives the TOST p-val… Computed in your browser — no data uploaded.
Open free tool →Free to use. No account required. No data uploaded.