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Bootstrap CI: Diff in ProportionsStatLens

Choose a dataset:

Edit or paste two columns (CSV with headers, group and outcome):

Open a CSV, TSV, or JSON file:

Group 1 Group label: Successes: Sample size (n₁):

Group 2 Group label: Successes: Sample size (n₂):

Count as success:

Confidence level %

Resamples

Original Groups

→

Resampled Groups

Select a dataset, then run a simulation to see results.

Bootstrap CI: Diff in Proportions

Load a dataset, then run resamples to build a bootstrap distribution of the difference in proportions. Use the histogram to estimate a confidence interval.

1: +1 resample
2: +10 resamples
3: +100 resamples
4: +1000 resamples
0: Reset
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Bootstrap CI: Diff in ProportionsStatLens ? ⚙

Original Groups

Resampled Groups

Bootstrap CI: Diff in ProportionsStatLens