Compute CI of a sum, difference, quotient or product

This calculator computes confidence intervals of a sum, difference, quotient or product of two means, assuming both groups follow a Gaussian distribution.

1. Choose data entry format

Caution: Changing format will erase your data.

Enter mean, N and SD.

Enter mean, N and SEM.

2. Enter data

Variable name

Mean

3. Which operation?

Calculate the confidence interval of:

A + B

A - B

A / B

A * B

4. View the results

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