|
| Regression coefficient | 95% CI | VIF |
| Constant | 3.722 (1.162) | −2.556 - 10.000 | - |
| pH 1 (<5.5) | −0.035 (−0.216) | −0.352 - 0.282 | 3.295 |
| pH 2 (5.5 - 6.5) | −0.093 (−0.266) | −0.780 - 0.594 | 11.616 |
| pH 3 (6.5 - 7.5) | 0.062 (0.512) | −0.176 - 0.300 | 4.096 |
| pH 4 (7.5 - 8.4) | 0.091 (0.238) | −0.663 - 0.846 | 12.852 |
| Sample capacity | 10 | ||
| R2 | 0.914 | ||
| Adjust R2 | 0.804 | ||
| F value | F(4, 5) = 8.361, p = 0.040 | ||