In the least squares equation, Ŷ = 10 + 20X, the value of 20 indicates ____________.
A) The Y-intercept increases by 20 units for each unit increase in X
B) That Y increases by 20 units for each unit increase in X
C) That X increases by 20 units for each unit increase in Y
D) The error in prediction

Question

Quizplus · Accepted Answer

The value of 20 in the least squares equation Ŷ = 10 +20X indicates that Y increases by 20 units for each unit increase in X. This is the slope or coefficient of X in the equation.

In the Least Squares Equation, Ŷ = 10 + 20X