Solved: The article referenced in Example 8.11 also
Chapter 8, Problem 47E(choose chapter or problem)
The article “Effects of Bottle Closure Type on Consumer Perception of Wine Quality” (Amer. J. of Enology and Viticulture, 2007: 182–191) reported that in a sample of 106 wine consumers, 22 (20.8%) thought that screw tops were an acceptable substitute for natural corks. Suppose a particular winery decided to use screw tops for one of its wines unless there was strong evidence to suggest that fewer than 25% of wine consumers found this acceptable.
a. Using a significance level of .10, what would you recommend to the winery?
b. For the hypotheses tested in (a), describe in context what the type I and II errors would be, and say which type of error might have been committed.
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