In a multiple regression analysis involving k independent variables and n data points, the number of degrees of freedom associated with the sum of squares for error is:
A. k-1
B. n-k
C. n-1
D. n-k-1
Analysis:
A. Incorrect. The number of degrees of freedom associated with the sum of squares for error
is n-k-1
B. Incorrect. The number of degrees of freedom associated with the sum of squares for error
is n-k-1
C. Incorrect. The number of degrees of freedom associated with the sum of squares for error
is n-k-1
D. Correct. The number of degrees of freedom associated with the sum of squares for error
is n-k-1
ANSWER : D
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