SCENARIO 18-2 One of the Most Common Questions of Prospective House Buyers

Multiple Choice

SCENARIO 18-2
One of the most common questions of prospective house buyers pertains to the cost of heating in dollars (Y) . To provide its customers with information on that matter, a large real estate firm used the following 4 variables to predict heating costs: the daily minimum outside temperature in degrees of Fahrenheit ( X₁ ) , the amount of insulation in inches ( X ₂ ) , the number of windows in the house ( X₃ ) , and the age of the furnace in years ( X ₄ ) . Given below are the EXCEL outputs of two regression models.


-Referring to Scenario 18-1,which of the following values for the level of significance is the smallest for which at least two explanatory variables are significant individually?

A) 0.01
B) 0.025
C) 0.05
D) 0.15