Based on a national survey, Table 13.16 shows results of a prediction equation for y = alcohol consumption, measured as the number of alcoholic drinks the subject drank during the past month.

(a) For x = alcohol consumption three years ago and dummy variables f for whether father died in the past three years, s for sex, and (m1,m2,m3) for the four categories of marital status, report the prediction equation.

(b) Find the predicted alcohol consumption for a divorced male whose father died in the previous three years and whose consumption three years previously was (i) 0 drinks per month, (ii) 10 drinks per month.