A Scatter Diagram Includes the Data Points:
(X = 2,y $\hat { y }$

Essay

A scatter diagram includes the data points:
(x = 2,y = 5),
(x = 4,y = 12),
(x = 6,y = 20),
(x = 8,y = 28),and
(x = 10,y = 30).
Two regression lines are proposed:
(1) $\hat { y }$ = -.6 + 3x
(2) $\hat { y }$ = -1 + 5 x
Using the least squares criterion,which of these regression lines is the better fit to the data? Why?