An analyst must decide between two different forecasting techniques for weekly sales of roller blades: a linear trendequation and the naive approach. the linear trend equation isFt = 124 + 2t, and it was developed using data fromperiods 1 through 10. Based on data for periods 11 through 20as shown in the table, which of these two methods has the greateraccuracy?
| t |
Units Sold |
| 11 |
147 |
| 12 |
148 |
| 13 |
151 |
| 14 |
145 |
| 15 |
155 |
| 16 |
152 |
| 17 |
155 |
| 18 |
157 |
| 19 |
160 |
| 20 |
165 |