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Bootstrap CI: Regression SlopeStatLens

Choose a dataset:

Edit or paste data (CSV with two numeric columns — x first, then y):

Open a CSV, TSV, or JSON file:

Confidence level %

Resamples

Original Data

slope = —

→

This Resample

slope = —

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

Bootstrap CI: Regression Slope

Resample the (x, y) pairs with replacement, refit the least-squares line, and record the slope each time. The histogram is the bootstrap distribution of the slope — read a confidence interval for the slope off its middle. This is an estimation tool: no hypotheses, no p-value.

1: +1 resample
2: +10 resamples
3: +100 resamples
4: +1000 resamples
0: Reset
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Bootstrap CI: Regression SlopeStatLens ? ⚙

Original Data

This Resample

Bootstrap CI: Regression SlopeStatLens