Do Q. 8_11 & 8_24 from Ch. 8 (Time Series Analysis and Forecasting) of the textbook.
Must use Excel for the assignment. Answers to questions can be written below the regression output wherever required.
Questions and data file are also uploaded below. For 24 f, you must do the MSE to determine which is a better model.
Data_8.11
| Monthy Proportion of On Tme Payments |
| 80 |
| 82 |
| 84 |
| 83 |
| 83 |
| 84 |
| 85 |
| 84 |
| 82 |
| 83 |
| 84 |
| 83 |
Data_8.24
| Year |
Quarter |
Sales |
| 1 |
1 |
1690 |
| 1 |
2 |
940 |
| 1 |
3 |
2625 |
| 1 |
4 |
2500 |
| 2 |
1 |
1800 |
| 2 |
2 |
900 |
| 2 |
3 |
2900 |
| 2 |
4 |
2360 |
| 3 |
1 |
1850 |
| 3 |
2 |
1100 |
| 3 |
3 |
2930 |
| 3 |
4 |
2615 |
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