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Equivalence & Non-Inferiority (TOST) In Minutes

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Running equivalence & non-inferiority (tost) analysis...

Running equivalence & non-inferiority (tost) analysis...

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Sample Output

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The method, in full

The practical guide behind this tool: when it applies, how to read the output, and the traps that make it say the wrong thing.

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What's in the report?

Standard-library analysis: are these two things practically the SAME within a margin? A standard t-test can never prove sameness, 'not significantly different' may just mean too little data. This tool runs the classical two one-sided tests (TOST): the mean difference with its 90% (TOST-consistent) and 95% confidence intervals plotted against your equivalence margin band, both one-sided tests spelled out, the standard t-test alongside for contrast, and a one-sided non-inferiority variant when only a deficit would matter. Supply a margin in your outcome's units, or let the tool use a clearly-labeled default of 0.2 x pooled SD.

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Difference vs the Equivalence Margin

Interactive bar visualization

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The Two One-Sided Tests

Interactive table visualization

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Group Statistics

Interactive table visualization

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Methods & Margin Disclosure

Interactive table visualization

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AI Insights

Plain-English reading of the results and what to do next.

The Question This Answers

Show a cheaper process, supplier, or formulation performs practically the same as the current one

Questions?

See our FAQ for pricing, privacy and how the analysis works.

How to cite this tool

MCP Analytics. Equivalence & Non-Inferiority (TOST). Free tool. https://mcpanalytics.ai/free/standard_equivalence. Accessed [date you used it].

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