What are some advantages and disadvantages of nonparametric testing?
Answer to relevant QuestionsDifferentiate between the Kruskal-Wallis test and the one-way analysis of variance in terms of their assumptions and the circumstances under which each should be applied. In testing three different rubber compounds, a tire manufacturer finds the tread life of tires made from each to be as shown below. At the 0.05 level, could the three compounds deliver the same median tread life? An extermination firm is testing several brands of pesticide spray, all of which claim to be effective against ants. Under controlled conditions, each spray is used on 10 ants of the species listed here. The measurement in ...Using the data of Exercise 14.13 and the 0.10 level, apply the sign test to compare the two samples. How do the results compare to those of that exercise? If they differ, what does this imply about the respective tests? In ...What is the Spearman coefficient of rank correlation, what range of values can it have, and how is its numerical value interpreted?
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