Refer to Exercise 14.10. Test the hypothesis, at the 5% significance level, that the type A defects occur independently of the type B defects.
14.10. Two types of defects, A and B, are frequently seen in the output of a manufacturing process. Each item can be classified into one of the four classes: A ∩ B,
Is there sufficient evidence to indicate that the four categories, in the order listed, do not occur in the ratio 5:2:2:1? (Use α = .05.)
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Mathematical Statistics with Applications
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