Rank Sum Test
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.
Features Include:

  • Up to 16 data points for each group
    can be evaluated
  • The results are stated IN ENGLISH,
    not statistics!
  • A line chart is generated showing
    both groups of data
  • Multiple tests are performed at 80%,
    90%, 95% and 99% confidence
Quality Dimensions