Table 4.
Analysis of the experimental results: evaluation of the effects.
| Parameter | Evaluation of Effects, Efficiency, %, R2 = 0.8977, R2adj = 0.7442, 3 Parameter, 1 Block, 16 Experiments, MS = 148.1306 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Effect | Standard Error | p-Value * | −95% Confidence Interval | +95% Confidence Interval | Factor | Standard Error of Factor | Lower Confidence Interval | Upper Confidence Nterval | |
| Constant value | 48.317 | 8.581 | 0.0013 | 27.320 | 69.313 | 48.317 | 8.581 | 27.320 | 69.313 |
| pH (L) * | −14.609 | 6.587 | 0.0684 | −30.726 | 1.509 | −7.304 | 3.293 | −15.363 | 0.754 |
| pH (Q) ** | −25.517 | 7.997 | 0.0188 | −45.085 | −5.948 | −12.758 | 3.999 | −22.543 | −2.974 |
| ACH dose (L) | 26.189 | 6.587 | 0.0073 | 10.072 | 42.307 | 13.095 | 3.293 | 5.036 | 21.153 |
| ACH dose (Q) | 10.935 | 7.997 | 0.2205 | −8.634 | 30.504 | 5.467 | 3.999 | −4.317 | 15.252 |
| Time (L) | 17.429 | 6.587 | 0.0382 | 1.312 | 33.546 | 8.715 | 3.293 | 0.656 | 16.773 |
| Time (Q) | 10.793 | 7.997 | 0.2258 | −8.776 | 30.362 | 5.397 | 3.999 | −4.388 | 15.181 |
| *** pH (L) relative to ACH dose (L) | −6.450 | 8.606 | 0.4819 | −27.508 | 14.608 | −3.225 | 4.303 | −13.754 | 7.304 |
| *** pH (L) relative to Time (L) | 4.600 | 8.606 | 0.6122 | −16.458 | 25.658 | 2.300 | 4.303 | −8.229 | 12.829 |
| *** ACH dose (L) relative to Time (L) | −3.800 | 8.606 | 0.6742 | −24.858 | 17.258 | −1.900 | 4.303 | −12.429 | 8.629 |
* statistically significant if p < 0.05, * L—linear effect, ** Q—quadratic effect, *** (L) relative to (L)—linear combination of the parameters.