Regression statistics of CCD: the regression coefficients and analysis of variance (ANOVA) of the CCD model for the photo-induced O-AgNP biofabrication process using O. limnetica extract. df: degree of freedom, *significant values, F: Fishers's function, P: level of significance, C. V: coefficient of variation.
| Source | Sum of squares | df | F-value | P-value prob > F | Coefficient estimate |
|---|---|---|---|---|---|
| Model | 1.44221 | 14 | 18.96 | <0.000* | 0.4324 |
| X 1 | 0.09760 | 1 | 17.96 | 0.001* | 0.0637 |
| X 2 | 0.04946 | 1 | 9.10 | 0.008* | 0.0454 |
| X 3 | 0.07833 | 1 | 14.41 | 0.002* | 0.0571 |
| X 4 | 0.53955 | 1 | 99.29 | 0.000* | 0.1499 |
| X 1 X 2 | 0.00579 | 1 | 1.06 | 0.317 | 0.0190 |
| X 1 X 3 | 0.01597 | 1 | 2.94 | 0.106 | 0.0315 |
| X 1 X 4 | 0.00381 | 1 | 0.70 | 0.415 | 0.0154 |
| X 2 X 3 | 0.00586 | 1 | 1.08 | 0.314 | 0.0191 |
| X 2 X 4 | 0.00230 | 1 | 0.42 | 0.525 | 0.0119 |
| X 3 X 4 | 0.02874 | 1 | 5.29 | 0.035* | 0.0423 |
| X 1 2 | 0.20075 | 1 | 46.68 | <0.000* | −0.0941 |
| X 2 2 | 0.22055 | 1 | 43.45 | <0.000* | −0.0908 |
| X 3 2 | 0.16561 | 1 | 27.54 | <0.000* | −0.0723 |
| X 4 2 | 0.02788 | 1 | 5.13 | 0.038* | 0.0312 |
| Residual | 0.08695 | 16 | |||
| Lack of fit | 0.08694 | 10 | |||
| Pure error | 0.00001 | 6 | |||
| CorTotal | 1.52916 | 30 | |||
| PRESS | 0.500794 | ||||
| R-squared | |||||
| Adj R-squared | |||||
| Pre R-squared |