A large automobile manufacturer has asked you to develop a questionnaire to measure owners' satisfaction with the servicing of their vehicles. One sequence of questions will deal with satisfaction with the design, construction, operating costs, performance, and amount of service required. In order to interpret these results, it has been decided to ask further questions to isolate the responsibility for car problems. That is, do car owners tend to blame the manufacturers, the service work by the dealer, or poor upkeep and driving habits of car owners? What kind of questions would you ask to determine this information?