Table 3. Analysis of Variance for Coefficients of the Model.
| source | sum of squares | df | mean square | F | P |
|---|---|---|---|---|---|
| model | 638.74 | 6 | 106.46 | 86.44 | <0.0001 |
| oil flow rate (ϕv,oil) | 465.12 | 1 | 465.12 | 377.67 | <0.0001 |
| alcohol to oil molar ratio (M) | 50.00 | 1 | 50.00 | 40.60 | <0.0001 |
| weight hourly space time (WHST) | 36.12 | 1 | 36.13 | 29.33 | 0.0003 |
| ϕv,oil × M | 6.25 | 1 | 6.25 | 5.07 | 0.0480 |
| M2 | 28.95 | 1 | 28.95 | 23.50 | 0.0007 |
| WHST2 | 47.91 | 1 | 47.91 | 38.90 | <0.0001 |
| residual | 12.32 | 10 | 1.23 | ||
| lack of fit | 9.52 | 6 | 1.59 | 2.27 | 0.2241 |
| pure error | 2.80 | 4 | 0.70 | ||
| cor total | 651.06 | 16 |