In: Finance
Problem 1: The following table shows the number of gallons of gasoline sold by a gasoline distributor in Providence, Rhode Island, over the past 7 weeks. Forecast sales using a 3-week weighted moving average where the weights are 3, 2, and 1.
| Week | Sales (100s of Gallons) |
| 1 | 17 |
| 2 | 21 |
| 3 | 19 |
| 4 | 23 |
| 5 | 18 |
| 6 | 16 |
| 7 | 20 |
3 week weighted moving average is calculated with the help of weights given as 3,2 and 1. For the nearest week, the highest weight is considered.
In this case, F4 = 3*Sales of week 3 + 2*Sales of week 2 + 1*Sales of week 1. similarly for other weeks.
Solution is in the below image.

