Question One PM Computer Services assembles customized personal computers from generic parts. Formed and operated by part-time UMass Lowell students Paulette Tyler and Maureen Becker, the company has had steady growth since it started. The company assembles computers mostly at night, using part-time students. Paulette and Maureen purchase generic computer parts in volume at a discount from a variety of sources whenever they see a good deal. Thus, they need a good forecast of demand for their computers so that they will know how many parts to purchase and stock. They have compiled demand data for the last 12 months as reported below PERIOD 1 2 3 4 5 6 MONTH JANUARY FEBRUARY MARCH APRIL MAY JUNE DEMAND 37 40 41 37 45 50 PERIOD 7 8 9 10 11 12 MONTH DEMAND JULY 43 AUGUST 47 SEPTEMBER 56 OCTOBER 52 NOVEMBER 55 DECEMBER 54 a. Use exponential smoothing with smoothing parameter a = 0.3 to compute the demand forecast for January (Period 13). b. Use exponential smoothing with smoothing parameter a = 0.5 to compute the demand forecast for January (Period 13). c. Paulette believes that there is an upward trend in the demand. Use trend-adjusted exponential smoothing with smoothing parameter a = 0.5 and trend parameter B = 0.3 to compute the demand forecast for January (Period 13)