Find an equation for the least squares line representing wei

Find an equation for the least squares line representing weight, in pounds, as a function of height, in inches, of men. Then, predict the weight of a man who is 68 inches tall to the nearest tenth of a pound. The following data are the (height, weight) pairs for 8 men:

(66, 150), (68, 160), (69, 166), (70, 175), (71, 181), (72, 191), (73,198), (74,206)

Solution

The equation obtained is

y=45.8915+0.1373*x

the predicted value is 60.