TABLE 14-4
A real estate builder wishes to determine how house size (House) is influenced by family income (Income), family size (Size), and education of the head of household (School). House size is measured in hundreds of square feet, income is measured in thousands of dollars, and education is in years. The builder randomly selected 50 families and ran the multiple regression. Microsoft Excel output is provided below:
-Referring to Table 14-4, what are the residual degrees of freedom that are missing from the output?
A) 3
B) 46
C) 49
D) 50

Question

TABLE 14-4
A real estate builder wishes to determine how house size (House) is influenced by family income (Income), family size (Size), and education of the head of household (School). House size is measured in hundreds of square feet, income is measured in thousands of dollars, and education is in years. The builder randomly selected 50 families and ran the multiple regression. Microsoft Excel output is provided below: 
-Referring to Table 14-4, what are the residual degrees of freedom that are missing from the output?
A) 3 
B) 46 
C) 49 
D) 50

Quizplus · Accepted Answer

The total degrees of freedom for the multiple regression is 50 (sample size) minus the number of independent variables included in the model (3) minus 1 for the intercept term. So the residual degrees of freedom are 46.

TABLE 14-4 A Real Estate Builder Wishes to Determine How House Size