These critical values of F are presented for training purposes. For real problems, your statistics book or stat software will provide more actual estimates of F. Also, these values are only for .05 alpha.
| df | 1 | 2 | 3 | 4 | 5 |
| 1 | 161 | 200 | 216 | 225 | 230 |
| 2 | 18.51 | 19.00 | 19.16 | 19.25 | 19.3 |
| 3 | 10.13 | 9.55 | 9.28 | 9.12 | 9.01 |
| 4 | 7.71 | 6.94 | 6.59 | 6.39 | 6.26 |
| 5 | 6.61 | 5.79 | 5.41 | 5.19 | 5.05 |
| 6 | 5.99 | 5.14 | 4.76 | 4.53 | 4.39 |
| 7 | 5.59 | 4.47 | 4.35 | 4.12 | 3.97 |
| 8 | 5.32 | 4.46 | 4.07 | 3.84 | 3.69 |
| 9 | 5.12 | 4.26 | 3.86 | 3.63 | 3.48 |
| 10 | 4.96 | 4.10 | 3.71 | 3.48 | 3.33 |
| 11 | 4.84 | 3.98 | 3.59 | 3.36 | 3.20 |
| 12 | 4.75 | 3.88 | 3.49 | 3.26 | 3.11 |
| 13 | 4.67 | 3.80 | 3.41 | 3.18 | 3.02 |
| 14 | 4.60 | 3.74 | 3.34 | 3.11 | 2.96 |
| 15 | 4.54 | 3.68 | 3.29 | 3.06 | 2.90 |
| 16 | 4.49 | 3.63 | 3.24 | 3.01 | 2.85 |
| 17 | 4.45 | 3.59 | 3.20 | 2.96 | 2.81 |
| 18 | 4.41 | 3.55 | 3.16 | 2.93 | 2.77 |
| 19 | 4.38 | 3.52 | 3.13 | 2.90 | 2.74 |
| 20 | 4.35 | 3.49 | 3.10 | 2.87 | 2.71 |
