Regression analysis was applied and the least squares regression line was found to be = 500 + 4x What would the residual be for an observed value of (3, 510)?
A) 2
B) 512
C) 510
D) -2

Question

Regression analysis was applied and the least squares regression line was found to be  = 500 + 4x What would the residual be for an observed value of (3, 510)?
A) 2 
B) 512 
C) 510 
D) -2

Quizplus · Accepted Answer

The predicted value for x=3 is:
11eb12c9_c684_a44d_b394_d74734816f0f_TB6985_11 = 500 + 4(3) = 512
The residual is the difference between the observed value and the predicted value:
Residual = Observed value - Predicted value
Residual = 510 - 512 = -2

Regression Analysis Was Applied and the Least Squares Regression Line