Multilevel ordered logit: (a) Take the previous exercise and allow the intercepts to vary by state. (b) Plot the fitted model from (a), along with the model from Exercise 17.9(a), for a set of eight...

Multilevel ordered logit:

(a) Take the previous exercise and allow the intercepts to vary by state.

(b) Plot the fitted model from (a), along with the model from Exercise 17.9(a), for a set of eight states (as in Figure 14.2 on page 307, but for this three-category model) and discuss how they differ.

(c) Discuss whether it is worth fitting this model, as compared to a logistic model that includes only two categories, discarding the respondents who express no opinion or support other candidates.