|
| Table 7. ANOVA for the third factorial design. |
|
Source of variation |
Sum of square |
Degrees of freedom |
Mean square |
F-ratio (model significance) |
|
Regression |
24.84 |
4 |
6.21 |
28.53a |
|
Residual |
2.61 |
12 |
0.28 |
|
|
Lack of fit |
2.55 |
10 |
0.25 |
|
|
Pure error |
0.07 |
2 |
0.03 |
|
|
Total |
27.45 |
16 |
|
|
Determination coefficient: R2 = 0.94; F0.95,4,12 = 3.26. |
|
|