Given the following historical demand, what is the 4-period (n=4) moving average forecast for Week 6
Week 1 = 11000
Week 2 = 10000
Week 3 = 9000
Week 4 = 8000
Week 5 = 7000
Week 6 = Predict using the 4-period (n=4) moving average forecast
Last Period Forecast: Ft+1 = Dt
where Ft+1 = forecast for the next period, t+1
and Dt = demand for the current period, t
Moving Average Forecast
Ft+1 = sum(i=1 to n) Dt+1-i / n
Weighted Moving Average Forecast
Ft+1 = sum(i=1 to n) Wt+1-i Dt+1-i
where Ft+1 = forecast for the next period, t+1
and Dt+1-i = actual demand for the period, t+1-i
and n = number of most recent demand observations used in the forecast