The menu is called "t test" and it seems as if it performed any type of t tests. It even asks for two sets of data without warning that they should be of the same size. The results include the size of each set, but the p-values are incorrect when the data is not paired. The bug is easily fixed by renaming the option as "paired t test" instead of simply "t test".
OK -> NEW What about the F and z tests? Should they also be named paired?
Adding keyword needsUXeval.
That's not a UX question but pure statistics (https://en.wikipedia.org/wiki/Student%27s_t-test#Unpaired_and_paired_two-sample_t-tests). We should make it at least/additionally clear in the help. Adding Olivier.
Here is the help link for it. https://help.libreoffice.org/Calc/Data_Statistics_in_Calc#t-test Stuart, Cor, Eike: thoughts whether this should be renamed?
Patch successfully compiled https://gerrit.libreoffice.org/#/c/45393/ (t-tests can be paired or unpaired https://en.wikipedia.org/wiki/Student%27s_t-test#Unpaired_and_paired_two-sample_t-tests, the difference is important in statistics)
/done
Heiko Tietze committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=7ace16688c503795a5af0c82b63856b1e737aa87 tdf#107601 Rename t-test to paired t-test It will be available in 6.1.0. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Heiko Tietze committed a patch related to this issue. It has been pushed to "libreoffice-6-0": http://cgit.freedesktop.org/libreoffice/core/commit/?id=2d6068e2746d5d94cb8732fd12d0f241223f278d&h=libreoffice-6-0 tdf#107601 Rename t-test to paired t-test It will be available in 6.0.0.1. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Olivier Hallot committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/help/commit/?id=9e89f79476859a19c376f0fdf029cc0600a39179 tdf#107601 rename t-test to Paired t-test in Help
Olivier Hallot committed a patch related to this issue. It has been pushed to "libreoffice-6-0": http://cgit.freedesktop.org/libreoffice/help/commit/?id=e741601dd05236be0f9412d8ba5df5314256d3c4&h=libreoffice-6-0 tdf#107601 rename t-test to Paired t-test in Help