1. An automobile manufacturer observes the de­mand for its brand increasing as per capita in­come increases. Sales increases also follow low interest rates, which ease credit conditions. Buyer purchase behavior is seen to be dependent on age and gender. Other factors inauencing sales appear to actuate almost randomly (competitor advertising, competitor dealer discounts, and intro­ductions of new competitive models).

If sales and per capita income are positively related, classify all variables as dependent, independent, moderating, extraneous, or intervening. Comment on the utility of a model based on the hypothesis

2. You are the administrative assistant for a division chief in a large holding company that owns several hotels and theme parks. You and the division chief have just come from the CEO’s office, where you were informed that the guest complaints related to housekeeping and employee attitude are increasing. Your on-site managers have mentioned some tension among the workers but have not considered it unusual. The CEO and your division chief instruct you to investigate. Suggest at least three different types of re­search that might be appropriate in this situation.