# Kolmogorov-Smirnov Test in Excel

## Kolmogorov-Smirnov (KS) is a Goodness of Fit Test

A Kolmogorov-Smirnov test is one of the many non-parametric statistical tests performed by QI Macros Add-in for Excel.

### Example

A psychiatric hospital has non-normal lengths of stay (column A-sorted). To conduct a test using QI Macros:

- Click on QI Macros menu, Statistical Templates to open the non-parametrics test template. Then click on the K-S tab.
- Input your data into the yellow shaded cells in column O. Copy the data into column A and sort it in ascending order.
- QI Macros will perform the calculations for you.

**Interpreting the Test Results:** For each signficance level from 0.2 to 0.01, the template determines if one should reject or accept the hypothesis that the cumulative sample function matches the cumulative probability function.

**Note: **Excel doesn't have the ability to do statistical tests of non-normal (i.e., not "bell shaped") data. QI Macros, adds this functionality with a set of templates to handle non-parametric data.

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