Consider the following paired samples and their differences. a. Verify that the median of the sample differences
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Consider the following paired samples and their differences.
a. Verify that the median of the sample differences is equal to 0.
b. Compute the test statistic for the signed-rank test.
c. Do you reject the null hypothesis that the median is equal to 0? Use the α = 0.05 level of significance.
Exercise 17 demonstrates that the results of the signed-rank test may be misleading when the assumption of symmetry is violated.
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