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Results of analysis of variance for corrosion rate.
| Source | DF | Seq SS | Contribution | Adj SS | Adj MS | F value | P value |
|---|---|---|---|---|---|---|---|
| Regression | 4 | 0.016933 | 73.03% | 0.016933 | 0.004233 | 7.45 | 0.004 |
| Reinforcement (%) | 1 | 0.001296 | 5.59% | 0.001296 | 0.001296 | 2.28 | 0.015 |
| NaCl (%) | 1 | 0.012500 | 53.91% | 0.012500 | 0.012500 | 21.99 | 0.001 |
| pH value | 1 | 0.003001 | 12.94% | 0.003001 | 0.003001 | 5.28 | 0.042 |
| Exposure time (hrs) | 1 | 0.000135 | 0.58% | 0.000135 | 0.000135 | 0.24 | 0.035 |
| Error | 11 | 0.006253 | 26.97% | 0.006253 | 0.000568 | ||
| Total | 15 | 0.023186 | 100.00% |
