Comparing means of two categorical factors including interactions
Hello, I am analyzing some data collected over the past year. For privacy reasons, I don't want to dive into it too much, but I think I've developed a simplified version of the experiment that I can use to ask questions. I have a randomized design with a 3x4 factorial arrangement. We'll say that I have a "Day" factor (Day 1, Day 10, Day 30) and a "Treatment" factor (Approach A, Approach B, Approac...