Interpreting Pairwise Tukey HSD t ratio in Zero-Inflated Poisson
The context of my data is from an e-commerce website. I am measuring the number of errors made based on different independent variables: Filtering technique (Alphabetical, Relevance and Search) and Number of Items added (Add one at a time, or add multiple items to cart at once). As the number of errors made is 0 most of the time, I have opted to use the Zero Inflated Poisson Regression. When I per...