Table 3 ANOVA to explain changes in compressive strength among NaHCO3 treated specimens, segregated by early or late compressive strength test performance
From: Time impacts of treating pervious concrete with sodium bicarbonate
| Â | Sum of squares | Degrees of freedom | Mean square | F-statistic | P-value | Effect size (Æž2) |
|---|---|---|---|---|---|---|
Porosity | 119 | 1 | 119 | 51.0 | 1.85E-08 | 46.9% |
Later C.S. test | 48.5 | 1 | 48.5 | 20.7 | 5.54E-05 | 19.1% |
Error | 86.5 | 37 | 2.34 | 1 | 0.5 | Â |