What your data support, and what to measure next

Bring files and a question. For supported models, Dr. Bean checks the claim with exact math and compares possible next measurements.

Start a study How it works

No account or key needed.

Five readings, and the claim

Curve inside the claimCurve outside the claimReading with its allowance

This curve fits all five readings too, so they don’t settle the claim.

Measure at 8 h

One new reading there can fit only one of the two curves.

How it works

Every step waits for your approval.