Table 5.
Analysis of variance ANOVA between the sixteen means of the T1-T16 tests and the fourteen means of the T17-T30 tests.
| Technological effect | Source of variation (test numbers) |
Machining period t | p-value | Statistical significance | Tests with significantly different means |
|---|---|---|---|---|---|
| linear material removal Δh | T1-T16 | ≤ 64 min | 0,16695 | no | - |
| roughness parameter Ra | 0,00142* | yes |
T4 and T11; T4 and T16 |
||
| waviness parameter Wa | 0,4657 | no | - | ||
| linear material removal Δh | T17-T30 | > 64 min | 0,06603 | no | - |
| roughness parameter Ra | 0,20332 | no | - | ||
| waviness parameter Wa | 0,0843 | no | - |
* p-value indicating statistically significant differences (p-value < 0.05).