A). Develop forecasts for periods 7 through 10 for the demand data in the table using a three period moving average, a weighted moving average using 0.6, 0.3, and 0.1, and exponential smoothing with alpha = 0.7.

Use a 6thperiod forecast of 135 as the starting point for the exponential smoothing technique. (2 + 3 + 8 marks)

Period	Actual	MA n = 3	WMA	Exp. Smoothing
1	64
2	84
3	91
4	97
5	115
6	135
7	137
8	144
9	153
10	171

B). The Fast Track Ski Shoppe sells ski goggles during the four months of the ski season. Average demandfollows:

a.Calculatethedeseasonalizedsalesandtheseasonalindexforeachofthefourmonths. (4 marks)

b.Ifnextyear'sdemandisforecastat1200pairsofgoggles,whatwillbetheforecast sales for eachmonth?(8 marks)

Month	Average Past Demand	Seasonal Index	Forecast Demand Next Year
December	300
January	400
February	200
March	150
Total