In: Mechanical Engineering
Q] The historical actual sales of an item purchased by a factory is given below. What would have been the forecast had the manager a) used 3 period moving average to make the forecast in the past, and b) used exponential smoothing with alpha=0.2 to make the forecast in the past. Show all calculations. PLEASE PROVIDE TABULATED EXCEL CALCULATIONS.
| Month | Actual Sales | 
| 1 | 45 | 
| 2 | 48 | 
| 3 | 37 | 
| 4 | 40 | 
| 5 | 43 | 
| 6 | 37 | 
| 7 | 46 | 
| 8 | 48 | 
| 9 | 42 | 
Sub: Material Science