the brand of volleyball a D1 women's volleyball uses in season and how much their forearms hurt after practice.
The explanatory variable is the brand of volleyball.
The response variable is how much the forearms of the players hurt (not at all hurt, medium hurt, or extreme hurt).
give the following:
(a) categories for each variable that you would use if you are performing a two-sample z procedure
(b) categories for each variable that you would use if you are performing a Chi-square test (these may overlap with the ones you use for part