Research Article
A Statistical Approach to Optimizing Concrete Mixture Design
Table 5
ANOVA for compressive strength test results.
| | Factors | Type | Level | Scale values |
| | Fixed | 3 | 0.875 | 0.938 | 1.000 | | Fixed | 3 | 0.792 | 0.896 | 1.000 | | Fixed | 3 | 0.778 | 0.889 | 1.000 |
| | Source | DF | SS | MS | -ratio | value | Significance |
| | 2 | 39.672 | 19.380 | 1.990 | 0.199 | No | | 2 | 464.501 | 232.250 | 23.260 | 0.000 | Yes | | 2 | 135.281 | 67.640 | 6.770 | 0.019 | Yes | | * | 4 | 23.686 | 5.921 | 0.590 | 0.678 | No | | * | 4 | 4.993 | 1.248 | 0.120 | 0.969 | No | | * | 4 | 22.437 | 5.609 | 0.560 | 0.697 | No | | Error | 8 | 79.890 | 9.986 | | | |
| | Total | 26 | 770.456 | | | | |
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