15-23. Consider the data in Exercise 15-3. Use the Wilcoxon signed-rank test to test the
Chapter 15, Problem 15-23(choose chapter or problem)
15-23. Consider the data in Exercise 15-3. Use the Wilcoxon signed-rank test to test the hypothesis H0: 2.5 ppm versus H1: 2.5 ppm with 0.05. Assume that the distribution of impurity level is continuous and symmetric.
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