Research Article
[Retracted] Optimization of Reinforced Aluminium Scraps from the Automobile Bumpers with Nickel and Magnesium Oxide in Stir Casting
Table 6
Analysis of variance of hardness for ratios of SN.
| | 
 |  | Source | DF | Seq SS | Adj SS | Adj MS | F | value |  | 
 |  | (MPa) | 2 | 0.05575 | 0.05575 | 0.02787 | 5.09 | 0.164 |  | t (s) | 2 | 6.04324 | 6.04324 | 3.02162 | 551.85 | 0.002 |  | N (rpm) | 2 | 3.46786 | 3.46786 | 1.73393 | 316.67 | 0.003 |  | Residual error | 2 | 0.01095 | 0.01095 | 0.00548 |  |  |  | Total | 8 | 9.57780 |  |  |  |  |  | 
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