1. The structure of these data resembles the structure of the data in the pricing example, but there are differences.
(a) If we consider the satisfaction data as an experiment, with response Rating, are the data balanced?
(b) What are the implications for the later analysis of your answer to (a)?
2. (a) What do you learn from a one-way analysis of variance of Rating by Vehicle Category?
(b) What do you learn from a one-way analysis of variance of Rating by Manufacturer?