In the least squares equation, = 10 + 20X the value of 20 indicates
A)the Y intercept.
B)for each unit increase in X,Y increases by 20.
C)for each unit increase in Y,X increases by 20.
D)none of these.

Question

In the least squares equation,  = 10 + 20X the value of 20 indicates
A)the Y intercept. 
B)for each unit increase in X,Y increases by 20. 
C)for each unit increase in Y,X increases by 20. 
D)none of these.

Quizplus · Accepted Answer

The value of 20 in the equation indicates that for each unit increase in X, Y increases by 20. This represents the slope of the line of best fit, meaning that as X increases by 1, the predicted value of Y increases by 20. The Y-intercept of the line is represented by the value of 10 in the equation.

In the Least Squares Equation, = 10 + 20X