Answer:
Step-by-step explanation:
Given the data:
Year___Actual sale (At) ___forecast(Ft)
2005__450_____________410
2006__495____________ 422
2007__518____________ 443.9
2008_ 563____________ 466.1
2009_584____________ 495.2
2010__
Using the formula :
Ft = Ft-1 + alpha(At-1 - Ft-1)
Ft-1 = previous year forecast
At-1 = previous year actual
Alpha = 0.3
Forecast:
2006:
410 + 0.3(450 - 410) = 422.0
2007:
422 + 0.3(495 - 422) = 443.9
2008:
443.9 + 0.3(518 - 443.9) = 466.1
2009:
466.1 + 0.3(563 - 466.1) = 495.2
2010:
495.2 + 0.3(584 - 495.2) = 521.8
Forecasted value for 2010 = 521.8
