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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. HIV MOS MON D 1 AN Heb MA April CE Nome IN HO JU 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)