Research Article
[Retracted] Optimization and Mechanical Properties of TiO2 Reinforced AA 7150 Composites Using Response Surface Methodology
Table 6
Analysis of variance on hardness.
| | Source | Df | Seq SS | Contribution (%) | Adj SS | Adj MS | F value | P value |
| | 1 | 8607.4 | 41.24 | 8601.8 | 8602.4 | 301.41 | 0.000 | | 1 | 4668.1 | 21.27 | 4681.2 | 4682.1 | 235.14 | 0.000 | | 1 | 6559.4 | 30.15 | 6571.3 | 6571.4 | 261.5 | 0.000 | | 1 | 231.4 | 1.27 | 231.4 | 231.5 | 10.01 | 0.069 | | 1 | 3.7 | 0.01 | 3.8 | 3.81 | 0.12 | 0.752 | | 1 | 80.02 | 0.39 | 80.1 | 80.2 | 3.05 | 0.590 | | 1 | 170.1 | 0.89 | 170.2 | 170.1 | 6.81 | 0.091 | | 1 | 192.4 | 0.87 | 195.4 | 194.8 | 7.81 | 0.071 | | 1 | 97.4 | 0.46 | 97.4 | 97.3 | 3.89 | 0.357 | | Error | 53 | 369.1 | 3.45 | 26.4 | 26.5 | | | | Total | 62 | 20978.02 | 100 | | | | |
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