< question papers of all the subjects.pdf 1) Delphi method ii) Tracking Signal. b) Using Simple Exponential Smoothing technique, determine the CO3 forecast for period 2 through 12 for which the actual figure are given below Assume the first period forecast is equal to actual demand in that period given alpha=0.2. Also graphically compare your forecast demand with the actual. Period Actual Demand 3 4 S 200 211 190 198 210 6 230 8 195 200 9 10 12 11 215 198 200 212 a) The two operations managers of a plastics firm have the responsibility C03 of scheduling intermittent production runs of various grades of plastic pipe so as to maintain factory inventories at specified levels. They have formulated their own index from published construction and employment data which they feel may be useful in anticipating demand (tons) of class 160-PVC pipe. Index 3 6 2 5 4 Demand (in tons) 6 7 4 10 8 pute the regression equation.