(a) Make a graph to describe the data. What does it show?(b) The DDT group appears to
Chapter 0, Problem 26.2(choose chapter or problem)
(a) Make a graph to describe the data. What does it show?(b) The DDT group appears to have two clusters. We may prefer a nonparametrictest to compare the groups. Find the Wilcoxon rank sum W for the DDT group,along with its mean and standard deviation under the null hypothesis (nodifference between groups).(c) Is W far enough from the mean to suggest that there may be a differencebetween the groups?
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