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An engineer suspects that the cutting speed (in inches) and feed rate (inches/minute) affect the surface finish of the metal part. For study the engineer gathered four cutting speeds and 3 feed rates and conducted a 2 factor experiment to obtain the data in Table with 3 replications. Make ANOVA at α = 0.05 to test for the significance of all possible effects.


Feed Rate
Cutting Speed 0.10 0.20 0.30
100 54, 60, 65 79, 68, 80 99, 88, 94
200 98, 89, 94 98, 106, 90 100, 98, 108
300 109, 98, 89 100, 108, 94 99, 82, 102
400 112, 100, 82 94, 104, 108 98, 116, 106

Statistics and Probability, Statistics

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  • Reference No.:- M922075

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