Table 4. Model validation

Experiment Factors %ImpC
X1 (°C) X2 X3 X4 (h) Predicted Actual
1 87 4.30 5.95 3.64 90.21 89.53
2 87 3.86 5.60 6.78 90.04 89.30
3 78 3.57 5.86 6.70 90.03 87.82
4 78 4.90 4.94 6.91 90.33 86.99