Open Access
Table 4
ANOVA results for thrust force.
| Source | Degree of freedom | Sum of squares | Mean square | f-value | p-value | ||||
|---|---|---|---|---|---|---|---|---|---|
| Regression | 9 | 427676 | 47519.5 | 103.01 | 0.000 | ||||
| Residual error | 17 | 7842 | 461.3 | ||||||
| Total | 26 | 435518 | |||||||
| R-sq (adj) = 97.25% | |||||||||
| Term | PE coefficient | SE coefficient | t-value | p-value | |||||
| Constant | 238 | 295 | 0.81 | 0.432 | |||||
| D | 79.5 | 46.1 | 1.73 | 0.102 | |||||
| Vc | −0.21 | 1.06 | −0.19 | 0.848 | |||||
| f | −4797 | 1557 | −3.08 | 0.007 | |||||
| D 2 | −5.52 | 2.19 | −2.52 | 0.022 | |||||
| Vc 2 | −0.00451 | 0.00351 | −1.29 | 0.215 | |||||
| f 2 | 9883 | 3507 | 2.82 | 0.012 | |||||
| D × Vc | 0.20 | 0.062 | 3.23 | 0.005 | |||||
| D × f | 301.6 | 62.0 | 4.86 | 0.000 | |||||
| Vc × f | −0.56 | 2.48 | −0.22 | 0.825 | |||||
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