| Statistical test | Value | k |
| F-statistic | 3.539526 | 4 |
|
| Critical value at the limits |
|
| Significance threshold | Lower bound | Upper bound |
| 10% | 2.2 | 3.09 |
| 5% | 2.56 | 3.49 |
| 2.5% | 2.88 | 3.87 |
| 1% | 3.29 | 4.37 |