Consider the melting-point data in Exercise 10-25. Do the sample data support a claim that both alloys
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Consider the melting-point data in Exercise 10-25. Do the sample data support a claim that both alloys have the same variance of melting point? Use α = 0.05 in reaching your conclusion.
Exercise 10-25
The melting points of two alloys used in formulating solder were investigated by melting 21 samples of each material. The sample mean and standard deviation for alloy 1 was x̅1 = 420°F and s1 = 4°F, and for alloy 2, they were x̅2 = 426°F and s2 = 3°F.
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Related Book For
Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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