|Wilcoxon-Mann-Whitney Rank Sum Test
Much like the t and F Test, the Wilcoxon – Mann – Whitney Rank Sum
Test looks for statistical differences between two groups of data.
However, it allows you to evaluate data that not normally distributed. If
you are comparing non-normal data, such as Flatness, you can use
this spreadsheet. If you are certain that your data is normally
distributed you should consider using a t and F test.