Bootstrap Confidence Interval

Calculate Bootstrap Confidence Interval instantly with the exact formula and a worked example.

Bootstrap Confidence Interval

Mean
SE
z (1.96=95%)
CI width
19.6
Calculate Bootstrap Confidence Interval instantly with the exact formula and a worked example.
Mean
100
Lower
90,2
Upper
109,8

More about: Bootstrap Confidence Interval

What it calculates

The “Bootstrap Confidence Interval” calculator computes CI width from 3 parameters: mean, se, z (1.96=95%).

A core calculation for studying, engineering tasks, and checking solutions.

Example calculation

With parameters Mean = 100, SE = 5, z (1.96=95%) = 1.96 the result is 19.6.

How to use

  1. Enter mean, se and z (1.96=95%) — each field above is adjustable with a slider.
  2. CI width is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Bootstrap Confidence Interval calculated?
The Bootstrap Confidence Interval calculator computes CI width from mean, se, z (1.96=95%). Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Bootstrap Confidence Interval calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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