Question
Exhibit 11.4 The following questions use the data below. Joe's Sporting Goods wants to forecast quarterly sales figures using the additive seasonal method. The store
Exhibit 11.4 The following questions use the data below. Joe's Sporting Goods wants to forecast quarterly sales figures using the additive seasonal method. The store has collected 12 quarters of data and needs your help to analyze the data.
| A | B | C | D | E | F | G | H | I | J | |
| 1 | Time | Actual | Base | Seasonal | Predicted | |||||
| 2 | Year | Qtr | Period | Sales | Level | Factor | Sales | |||
| 3 | 1 | 1 | 1 | 284 | 331.25 | 47.250 | alpha | 0.764 | ||
| 4 | 2 | 2 | 184 | 331.25 | 147.250 | beta | 1.0 | |||
| 5 | 3 | 3 | 365 | 331.25 | 33.750 | |||||
| 6 | 4 | 4 | 492 | 331.25 | 160.750 | |||||
| 7 | 2 | 1 | 5 | 485 | 484.85 | 0.146 | 284.00 | |||
| 8 | 2 | 6 | 277 | 438.54 | 161.541 | 337.60 | ||||
| 9 | 3 | 7 | 606 | 540.72 | 65.279 | 472.29 | ||||
| 10 | 4 | 8 | 722 | 556.41 | 165.591 | 701.47 | ||||
| 11 | 3 | 1 | 9 | 763 | 714.17 | 48.827 | 556.56 | |||
| 12 | 2 | 10 | 593 | 745.02 | 152.022 | 552.63 | ||||
| 13 | 3 | 11 | 912 | 822.74 | 89.260 | 810.30 | ||||
| 14 | 4 | 12 | 1145 | 942.47 | 202.534 | 988.33 | ||||
| 15 | ||||||||||
| 16 | 17688.777 |
Refer to Exhibit 11.4. What formula should be entered in cell G12 to compute the forecast for time period 10?
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The Practice Of Statistics
Authors: Daren S. Starnes, Josh Tabor
6th Edition
9781319113339
