S4. Use the same variables as in Exercise 1, but do the analysis separately for married and divorced respondents. Begin by locating the variable MARITAL. Click Data, Split File, and then select Organize Output by Groups. Insert MARITAL into the box and click OK. SPSS will split your results by marital status.

1. Is there any difference between the regression equations for married and divorced respondents?

2. What is the predicted number of children for married and divorced respondents with the following number of siblings: one sibling, four siblings, and seven siblings?

3. What differences, if any, do you find? Is the number of siblings a better predictor of number of children for married respondents or for women?