Question: 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

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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