Getting ready to run Wilcoxon sign Rank test using Minitab

 

 

In Minitab, we set up the two related groups as though they were two variables: (a) the first related group, carb, was entered under column , as follows: ; and (b) the second related group, carb_protein, was entered under column , as follows: . Then, we entered the scores on the dependent variable for each of the two related groups (i.e., the distance run for each participant after taking the carbohydrate-only drink in the carb column and the distance run for the same participants after taking the carbohydrate-protein drink in the carb_protein column). Finally, we calculated the difference scores between carb and carb_protein, which were automatically entered under column into the variable, difference, as follows: . This is illustrated below:

Published with written permission from Minitab Inc.

Note: The difference scores that you need when running a Wilcoxon signed-rank test in Minitab are not automatically calculated. Therefore, you need to run the Calc > Calculator... procedure