*Need help with only D highlighted*

The owner of a moving company typically has his most experienced manager predict the total number of labor hours that will be required to use a upcoming move. In an effort to provide a more accuratemethod, the owner has decided to use the number of cubic feet moved as the independent variable and has collected data for 20 moves in which the travel time was an insignificant portion of the hours worked. Use the data provided to complete parts(a) through(d) below.

Cubic_Feet_Moved Labor_Hours

652 30.00

796 34.75

398 16.75

843 40.75

804 39.50

674 31.25

832 36.75

669 33.50

456 24.25

478 25.50

392 19.50

408 21.75

424 18.50

724 33.75

627 32.00

380 16.00

808 40.50

281 12.25

752 36.25

303 16.00

b. Assuming a linearrelationship, use theleast-squares method to determine the regression coefficients b0 and b1.

b0=

b1=

(Round to three decimal places asneeded.)

d. Predict the mean labor hours for moving 800 cubic feet.

hours