Suppose for a given data set the regression equation is: y = 54.78 + 1.45x, and the point (0.00, 24.78) is in the data set. The residual for this point is ___.
A) 24.78
B) −24.78
C) 0.00
D) 30.00
E) −30.00

Question

Quizplus · Accepted Answer

The predicted value of y when x = 0.00 is 54.78. The actual y value is 24.78. The residual is the actual y minus the predicted y, which is 24.78 - 54.78 = -30.00.

Suppose for a Given Data Set the Regression Equation Is