Answer: Reconsider the paint-drying problem discussed in
Chapter 8, Problem 8.61(choose chapter or problem)
Reconsider the paint-drying problem discussed in Example 8.2. The hypotheses were H0: 75 versus Ha: 75, with assumed to have value 9.0. Consider the alternative value 74, which in the context of the problem would presumably not be a practically significant departure from H0. a. For a level .01 test, compute at this alternative for sample sizes n 100, 900, and 2500. b. If the observed value of Xis x 74, what can you say about the resulting P-value when n 2500? Is the data statistically significant at any of the standard values of ? c. W c. Would you really want to use a sample size of 2500 alongwith a level .01 test (disregarding the cost of such anexperiment)? Explain.
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