Table 7.
Polymer | Coded level | Actual level | Responses | Hardness | Swelling index |
---|---|---|---|---|---|
Predicted values | 6.002 | 228.18 | |||
Observed values | 6 | 226 | |||
Polyox WSR205 | 1 | 180 | Standard deviation | 0.2359 | 3.098 |
Xanthan gum | −1 | 45 | Standard error mean | 0.2049 | 2.6919 |