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(Solution) - Refer to Exercise 15 21 Conduct the test using the large sample

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Refer to Exercise 15.21. Conduct the test using the large-sample z-test. Compare your results with the nonparametric test results in Exercise 15.22, part d.
Exercise 15.21
Suppose you wish to detect a difference in the locations of two population distributions based on a paired-difference experiment consisting of n = 30 pairs.
a. Give the null and alternative hypotheses for the Wilcoxon signed-rank test.
b. Give the test statistic.
c. Give the rejection region for the test for ? = .05.
d. If T+ = 249, what are your conclusions?

 







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