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The table below shows the quarterly sales of a particular kind of vaccine for do...
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The table below shows the quarterly sales of a particular kind of vaccine for dogs. The forecaster uses autoregressive models with p = 3 to forecast the sales for future time periods.
Year Quarter | Sales (000’s) |
1.1 | 272 |
1.2 | 239 |
1.3 | 158 |
1.4 | 219 |
2.1 | 228 |
2.2 | 198 |
2.3 | 169 |
2.4 | 238 |
3.1 | 270 |
3.2 | 246 |
3.3 | 203 |
3.4 | 284 |
4.1 | 299 |
4.2 | 267 |
4.3 | 218 |
4.4 | 293 |
5.1 | 307 |
5.2 | 258 |
5.3 | 323 |
5.4 | 296 |
6.1 | 307 |
6.2 | 271 |
6.3 | 197 |
6.4 | 266 |
The number of forecast values determined is: