What is the forecast for period 15 using the 3-week moving average? Round to the nearest whole number Time period Actual Demand 1 419.1 2 986.7 3...

Moving Average Forecast of Order k is ,

`F_(t+1)=(Y_t+Y_(t-1)+...........+Y_(t-k+1))/k`  

where,  `F_(t+1)` = forecast of the time series for period t+1

           `Y_t` = actual value of the time series in period t

We have to calculate the Forecast for the period 15 and the order is 3 ( 3-week moving average)

`:.F_15=(Y_14+Y_13+Y_12)/3`

`F_15=(2139.9+3399+3629.4)/3`

`F_15=9168.3/3`

`F_15=3056.1`

Round to the nearest whole number,

`F_15=3056`

So, the forecast for the period 15 is...

Moving Average Forecast of Order k is ,

`F_(t+1)=(Y_t+Y_(t-1)+...........+Y_(t-k+1))/k`  

where,  `F_(t+1)` = forecast of the time series for period t+1

           `Y_t` = actual value of the time series in period t

We have to calculate the Forecast for the period 15 and the order is 3 ( 3-week moving average)

`:.F_15=(Y_14+Y_13+Y_12)/3`

`F_15=(2139.9+3399+3629.4)/3`

`F_15=9168.3/3`

`F_15=3056.1`

Round to the nearest whole number,

`F_15=3056`

So, the forecast for the period 15 is 3056.