Using the following numbers, provide the next period forecast using MA3, MA5, weighted 3 period moving average (.50, .33, .17). Show an error column; the difference between the actual demand and the forecast numbers that you generate.

QTR DEMAND

1. 105
2. 150
3. 93
4. 121
5. 140
6. 170
7. 105
8. 150
9. 150
10. 120
11. 140
12. 130
13. ___