Question

Question Help Problem 3-19 (algorithmic) No. of Liner Board Orders, Shipments, y 561 603 143 164 668 174 737 192 For the data above: a. Find the regression equation, y +x b. If x-170 orders, how many shipments are expected? a. The coefficient bo isRound to three decimal places.) The coefficient b1 is L. (Round to three decimal places.)

Answer 1

(1) Σ(x,ーが Now we compute the following table 637.56 561 143 25.2581.25 2051.56 166.81 603 164 4.25 39.25 18.06 668 174 5.7525.75 148.06 33.06 2250.31 564.06 737 192 23.7594.75 '(x-刃2 = 1252.75 (Xi-刃(Yi-F) = 46 16.75 Y = 642.25 X = 168.25 Putting the values from the table in equation (1) 4616.75 3.69 b1252.75 bo = 642.25-3.69 x 168.25 22.20 And from equation (2) a) Therefore, the regression equation is Y 22.203.69X b) If X-170, then Y- 22.203.69x170 648.70