LibreOffice 24.8 abi
Calculates the z-Test of two data samples.
For more information on Z-tests, refer to the corresponding Wikipedia article.
Variable 1 range: The reference of the range of the first data series to analyze.
Variable 2 range: The reference of the range of the second data series to analyze.
Results to: The reference of the top left cell of the range where the test will be displayed.
The following table shows the z-Test for the data series above:
| z-test | ||
| Alfa | 0.05 | |
| Oletatav keskmiste vahe | 0 | |
| Muutuja 1 | Muutuja 2 | |
| Teadaolev dispersioon | 0 | 0 | 
| Keskmine | 16.9230769231 | 20.4615384615 | 
| Valimi maht | 13 | 13 | 
| Keskmiste vahe valimis | -3.5384615385 | |
| z | #DIV/0! | |
| P (Z<=z) ühepoolne | #DIV/0! | |
| z kriitiline ühepoolne | 1.644853627 | |
| P (Z<=z) kahepoolne | #DIV/0! | |
| z kriitiline kahepoolne | 1.9599639845 |