The business analyst for Video Sales, Inc. wants to forecast yearly demand for DVD decoders based on the following historical data:
The business analyst for Video Sales, Inc. wants to forecast yearly demand for DVD decoders based on the following historical data:
| Year | Demand |
|---|---|
| 5 years ago | 900 |
| 4 years ago | 700 |
| 3 years ago | 600 |
| 2 years ago | 500 |
| Last year | 300 |
What is the forecast for this year using a three-year simple moving average?
What is the forecast for last year using simple exponential smoothing with smoothing constant alpha = 0.4, if the forecast for two years ago was 750?
What is the forecast for this year using simple exponential smoothing with smoothing constant alpha = 0.4, if the forecast for two years ago was 750?
