Table 4.
Source | Sum of squares | df | Mean square | F value | p-Value | Remark |
---|---|---|---|---|---|---|
Sequential model sum of squares | ||||||
Mean vs. total | 70,141.98 | 1 | 70,141.98 | – | – | – |
Linear vs. mean | 2242.61 | 3 | 747.54 | 41.10 | <.0001 | – |
2FI vs. linear | 91.98 | 3 | 30.66 | 2.27 | .1574 | – |
Quadratic vs. 2FI | 107.32 | 3 | 35.77 | 246.6 | <.0001 | Suggested |
Lack of fit | ||||||
Linear | 199.31 | 9 | 22.14581 | 61.42514 | .0161 | – |
2FI | 107.32 | 6 | 17.88802 | 49.61545 | .0199 | – |
Quadratic | 0.004 | 3 | 0.001365 | 0.003787 | .9996 | Suggested |
Source | Std. Dev. | R 2 | Adjusted R2 | Predicted R2 | PRESS | Remark |
Model summary statistics | ||||||
Linear | 4.26 | 0.9181 | 0.8957 | 0.8395 | 391.96 | – |
2FI | 3.67 | 0.9557 | 0.9226 | 0.8271 | 422.27 | – |
Quadratic | 0.38 | 0.9997 | 0.9991 | 0.9993 | 1.68 | Suggested |