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An engineer wants to assess the relationship between sintering time and the compressive strength of three different metals. The engineer measures the compressive strength of five specimens of each metal type at each sintering time: 100 minutes, 150 minutes, and 200 minutes. The engineer has set her alpha level at 0.05. Minitab returns the results in Table 4.3 from an analysis of her experiment. Interpret the results and determine what subsequent analysis you would carry out. (4 marks) Table 4.3: Minitab Output from Sintering of Metal Types Experiment Analysis of Variance DF Adj SS Source Adj MS F-Value P-Value 1.71 0.2094 SinterTime 2 8.222 4.1111 20.222 0.0318 MetalType 2 10.1111 4.20 46.222 11.5556 4.80 0.0082 SinterTime*MetalType 4 43.333 18 2.4074 Error 118.000 Total 26
An engineer wants to assess the relationship between sintering time and the compressive strength of three different metals. The engineer measures the compressive strength of five specimens of each metal type at each sintering time: 100 minutes, 150 minutes, and 200 minutes. The engineer has set her alpha level at 0.05. Minitab returns the results in Table 4.3 from an analysis of her experiment. Interpret the results and determine what subsequent analysis you would carry out. (4 marks) Table 4.3: Minitab Output from Sintering of Metal Types Experiment Analysis of Variance DF Adj SS Source Adj MS F-Value P-Value 1.71 0.2094 SinterTime 2 8.222 4.1111 20.222 0.0318 MetalType 2 10.1111 4.20 46.222 11.5556 4.80 0.0082 SinterTime*MetalType 4 43.333 18 2.4074 Error 118.000 Total 26
26 May 2023
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