I am currently taking course: Statistics 1: Introduction to ANOVA, Regression, and Logistic Regression-Chapter 3: More complex linear models. When I do the practice: performing a two-way ANOVA, Q3, I cannot successfully complete step 5 from the answer. I cannot add anything on the "model effects" section. Here is what's my SAS like, could you please help me figure it out? Thanks so much!
