Question: Exercise 10-28 presented measurements of plastic coating thickness at two different application temperatures. Test H0: 2/1 = 2/2 against H1: 2/1  2/2 using a

Exercise 10-28 presented measurements of plastic coating thickness at two different application temperatures. Test H0: σ2/1 = σ2/2 against H1: σ2/1  σ2/2 using a = 0.01.

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