Use the preparation materials to prepare hand-written answers for the following questions. Please ask any questions on the "Questions -- Preparation Guide" on the course Team (see link on the homepage).
- What is the form of the formula in
lm()for a Two-Way ANOVA? - What are the assumptions of a Two-Way ANOVA()?
- How are each of the assumptions of a Two-Way ANOVA assessed?
- In what order are the p-values in the ANOVA table of a Two-Way ANOVA examined? Explain why.
- What function is used to perform multiple comparisons in R?
- What must be done before performing multiple comparisons for main effects? Explain why.
- What is plotted in an interaction plot?
- What is plotted in a main effects plot?
- [Optional] What questions do you have from this reading that you would like me to address? [Please be as specific as possible. Don't just say "everything" or "I don't understand anything." Of course, you can ask me questions about the reading before class on MS Teams.]