Table 3.
The Shapiro-Wilk and Kolmogorov-Smirnov tests for five variables.
| Conversion (%) | Level | Kolmogorov-Smirnov | Shapiro-Wilk | ||||
|---|---|---|---|---|---|---|---|
| Statistic | Df | P value | Statistic | Df | P value | ||
| Enzyme amount (% w/w) | 3.00 | 0.120 | 16 | 0.200 | 0.962 | 16 | 0.694 |
| 5.00 | 0.161 | 14 | 0.200 | 0.926 | 14 | 0.271 | |
| 7.00 | 0.188 | 16 | 0.133 | 0.967 | 16 | 0.784 | |
|
| |||||||
| Reaction time (h) | 8.00 | 0.154 | 16 | 0.200 | 0.938 | 16 | 0.327 |
| 16.00 | 0.122 | 14 | 0.200 | 0.975 | 14 | 0.930 | |
| 24.00 | 0.141 | 16 | 0.200 | 0.948 | 16 | 0.455 | |
|
| |||||||
| Reaction temperature (°C) | 55.00 | 0.174 | 16 | 0.200 | 0.936 | 16 | 0.308 |
| 60.00 | 0.157 | 15 | 0.200 | 0.920 | 15 | 0.194 | |
| 65.00 | 0.133 | 16 | 0.200 | 0.966 | 16 | 0.769 | |
|
| |||||||
| Molar ratio (OA : TEA) (mole) | 1.00 | 0.137 | 16 | 0.200 | 0.957 | 16 | 0.609 |
| 2.00 | 0.121 | 15 | 0.200 | 0.958 | 15 | 0.651 | |
| 3.00 | 0.158 | 16 | 0.200 | 0.960 | 16 | 0.666 | |
|
| |||||||
| Agitation speed (r.p.m.) | 250.00 | 0.155 | 16 | 0.200 | 0.946 | 16 | 0.431 |
| 400.00 | 0.146 | 14 | 0.200 | 0.932 | 14 | 0.330 | |
| 550.00 | 0.104 | 16 | 0.200 | 0.971 | 16 | 0.856 | |