The assumption that there are no exact linear relationships among the independent variables in a multiple linear regression model fails if _____, where n is the sample size and k is the number of parameters.

In Figure 11.1, a decrease in the marginal propensity to save is represented by a change in the consumption function from

A) C1 to C3. B) C3 to C1. C) C2 to C1. D) C1 to C2.

In the health care market:

A. demand has increased relative to supply. B. supply has increased relative to demand. C. neither demand nor supply has changed significantly in the past two decades. D. the concepts of demand and supply are irrelevant.