Lenovo uses the ZX-81 chip in some of its laptop computers. Theprices for the chip during the past 1

Lenovo uses the ZX-81 chip in some of its laptop computers. Theprices for the chip during the past 12 months were as follows:Months Price/ chip $ January 1.80 Feb 1.67 March 1.70 April 1.85May 1.90 June 1.87 July 1.80 August 1.83 September 1.70 October1.65 November 1.70 December 1.75 a) Use a 2-month moving average onall the data and plot the averages and prices. b) Use a 3-monthmoving average and add the 3 month plot to the graph created inpart (a). c) Which is better (using the mean absolute deviation):the 2-month average or 3-month average? d) Compute the forecastsfor each month using exponential smoothing, with an initialforecast for January of $1.80. Use a=.1, then a=.3 and finallya=.5. Using MAD, which a is the best. . . .

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