"LenovousestheZX-81chipinsomeofitslaptopcomputers.Thepricesforthechipduringthepast12monthswere as follows: MONTH PRICE PER CHIP MONTH PRICE PER CHIPJanuary

$1.80 July 1.80 February 1.67 August 1.83 March 1.70 September 1.70 April 1.85 October 1.65 May 1.90 November 1.70 June 1.87 December 1.75 "148 PART 1|INTRODUCTION TO OPERATIONS MANAGEMENTa)Useexponentialsmoothing,firstwithasmoothingconstantof .6 and then with one of .9, to develop forecasts for years 2 through 6.b)Use a 3-year moving average to forecast demand in years 4, 5, and 6.c)Use the trend-projection method to forecast demand in years 1 through 6.d)WithMADasthecriterion,whichofthefourforecastingmethods is best?"