New aluminum alloy undergoing development

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Compressive strength (in thousand psi) was measured on 60 specimens of a new aluminum alloy undergoing development as a material for the next generation of aircraft. 66.4 67.7 68.0 68.0 68.3 68.4 68.6 68.8 68.9 69.0 71.9 72.1 72.2 72.3 72.4 69.2 69.3 69.3 69.5 69.5 69.6 69.7 69.8 69.8 69.9 72.6 72.7 72.9 73.1 73.3 70.0 70.1 70.2 70.3 70.3 70.4 70.5 70.6 70.6 70.8 74.2 74.5 75.3 70.4 68.8 71.0 71.1 71.2 71.3 71.3 71.5 71.6 71.6 71.7 71.8 69.5 67.3 72.5 70.2 73.2 (36) The standard deviation of data is A 2.53 B 3.36 C 1.83 D 2.59 (37) The coefficient of variation of data is A 2.53 B 3.36 C 1.83 D 2.59

Reference no: EM132522200

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