In general, when should a nonparametric technique be used instead of its parametric counterpart?
Answer to relevant QuestionsA sample of five law firms has been selected from each of three major cities for the purpose of obtaining a quote for legal services on a relatively routine business contract. The quotes provided by the fifteen firms are as ...Compare the Friedman test with the randomized block ANOVA in terms of (a) Their respective null and alternative hypotheses, and (b) The assumptions required in order to use each test. What role does the binomial distribution play in the sign test, and when is it permissible to use the normal approximation in carrying out the test? What is the parametric counterpart to the Wilcoxon signed rank test for one sample? Compare the assumptions involved in using the respective tests. Testing the effect of a diet and exercise regimen on subjects’ cholesterol levels, a sports medicine clinic enlists 40 volunteers whose cholesterol levels are measured before and after the 1-month program. The before and ...
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