What conditions are required for a valid application of the Wilcoxon rank sum test?
Answer to relevant QuestionsSuppose you want to compare two treatments, A and B. In particular, you wish to determine whether the distribution for population B is shifted to the right of the distribution for population A. You plan to use the Wilcoxon ...Refer to the Academy of Management Journal (Oct. 2007) study on rudeness in the workplace, Exercise 9.26 (p. 427). Recall that 98 college students enrolled in a management course were randomly assigned to one of two ...Refer to the June 2007 Virginia Department of Transportation (VDOT) study of a newly adopted photo-red-light enforcement program, Exercise. Recall that the VDOT provided crash data both before and after installation of red ...Refer to the Food Chemistry (Vol. 106, 2008) study of commercial eggs produced from different housing systems for chickens, Exercise. Recall that the four housing systems investigated were (1) cage, (2) barn, (3) free range, ...Refer to the Kansas State study designed to investigate the effects of plants on human stress levels, Exercise. Recall that finger temperatures for each of ten students in a dimly lit room were recorded under three ...
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