1. what is the effect size measure for ANOVA (i.e. what is it called/how is it denoted) and what does it tell you?

2. Why do we conduct ANOVAs instead of t-tests for some kinds of experiments, and what is the problem of "multiple comparisons"?

3. How does the sample size affect the critical t value? what is the degree of freedom for a one sample t test with a sample size of N?

4. How do you know when to use either a z-test or a t-test (i.e. what must you know or now know for each)?

5. What is the relationship between groups variability and within-groups variability and the size of the F statistic? what does it mean when the F statistic is large?

2.