D.5.7.1 In Output 7.1: (a) What do the terms “count” and
“expected count” mean? (b) What does the difference between them tell you?

D.5.7.2 In Output 7.1: (a) Is the (Pearson) chi-square
statistically significant? Explain what it means. (b) Are the expected values
in at least 80% of the cells ≥ 5? How do you know? Why is this important?

D.5.7.4 Because father’s and mother’s education revised are
3-level variables with at least ordinal data, which of the statistics used in
Problem

D.5.7.3 is the most appropriate to measure the strength of
the relationship: phi, Cramer’s V, or Kendall’s tau-b? Interpret the results.
Why are tau-b and Cramer’s V different?