The equation used to predict the annual rye yield in bushels

The equation used to predict the annual rye yield (in bushels per acre) is: y = 22 - 0.027x1 + 0.156x2 where x1 is the number of acres planted (in thousands) and x2 is the number of acres harvested (in thousands). Use the multiple regression equation to predict the annual rye yield (in bushels per acre) when:

a) x1 = 1250 and x2 = 250

b) x1 = 1400 and x2 = 275

Solution

The equation used to predict the annual rye yield (in bushels per acre) is: y = 22 - 0.027x1 + 0.156x2 where x1 is the number of acres planted (in thousands) and x2 is the number of acres harvested (in thousands).

Thus, when,

then, y=22-0.027*1250+0.156*250=27.25

then, y=22-0.027*1400+0.156*275=27.1