The 26 students in a statistics class for social science majors at the University of Florida were surveyed about their attitudes toward divorce. Each received a response score according to how many from a list of seven possible reasons were regarded as legitimate for a woman to seek a divorce. The students were also asked whether they were fundamentalist or nonfundamentalist in their religious beliefs and whether their religious attendance was frequent (more than once a month) or infrequent. Table 12.31 shows the data.

(a) Using regression methods in software, fit the model that assumes no interaction. Interpret parameter estimates.

(b) Test the main effects for a two-way ANOVA, assuming no interaction. Interpret.

(c) Analyze whether an analysis permitting interaction is more appropriate.