Toggle navigation
Home
Statistical Methods
Method selection tool
Method selection table
Inference for proportions
Chi squared test
z test
t test
ANOVA
Regression analysis
Correlation
Non parametric
Practice
Practice Questions
Extra Practice Material
Learning Tips
Customized Services
About
Contact
«
Back
How to compute the sum of ranks for each group
Sum of ranks in group $i$
Arrange
all
observations from smallest to largest, and mark the observations which belong to group $i$
The rank of each observation is its position in this ordered list. If there are ties, assign them the average of the ranks they occupy
Sum the ranks that belong to group $i$