1. TheGalamtour companyhasdemandforan itemformonthsJanuarythrough September. Your manager needs to compare two forecasting strategies to see which one performed better over time.

Month	Actual	Month	Actual
January	110	June	180
February	130	July	140
March	150	August	130
April	170	September	140
May	160

1. ForecastAprilthrough Septemberusingathree-monthmoving average.
2. Usesimpleexponentialsmoothingwithanalphaof0.3toestimate Aprilthrough September,using theaverageofJanuarythrough Marchastheinitialforecast for April.
3. UseMADtodecide whichmethodproduced thebetterforecast overthesix- month period and advise your manager of the better method.