In a Regression Analysis for Estimating a Cost Function, the Adjusted

Multiple Choice

In a regression analysis for estimating a cost function, the adjusted R-Square statistic provides information about:

A) The amount of variation in cost that is explained by variation in the cost driver
B) The size of the slope coefficient
C) Whether the cost is a fixed, variable, or mixed cost
D) How confident we can be that the intercept or slope coefficients are different from zero