For n = 8 nonzero differences between paired observations, there are 5 (+) differences for d = x1 – x2. Use the 0.05 level of significance in testing H0: md = 0 versus H1: md ≠ 0.
Answer to relevant QuestionsFor n = 6 nonzero differences in a one-sample test, there are = (1) differences for d = x – 20. Use the 0.10 level of significance in testing H0: md ≤ 20 versus H1: md > 20. What is the parametric counterpart to the Wilcoxon signed rank test for one sample? Compare the assumptions involved in using the respective tests. For the data of Exercise 14.16, convert the husbands’ and wives’ expenditures to ranks, then determine and interpret the Spearman coefficient of rank correlation. At the 0.05 level, does rs differ significantly from ...Last year’s rates of return for a random sample of mutual funds are listed in file XR14063. Using either the Kolmogorov-Smirnov test or the chi-square test for normality and the 0.10 level of significance, examine whether ...Three different O-ring shapes are being considered for use in a deep-sea submersible vehicle that will be remote-operated from the surface vessel. Because the sealing effectiveness depends partially on the temperature of the ...
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