Why is it important, when conducting a Wilcoxon Rank Sum Test using Appendix 5 on page 582, to calculate W from the smallest sample?
Answer to relevant QuestionsWhy is the unequal-variances version of the t-test of µ1 – µ2 generally preferred to the equal-variances version? Mention three reasons. The manager of an upscale coffee store is trying to decide which of three locations would be best for a new store. The manager currently wants to determine whether there are differences in the foot traffic at each location. ...The owner of a winery is wondering whether the average purchase made by visitors to her winery differs according to age. She asks the cashiers to keep track of a random sample of purchases by customers in three age groups: ...Does the type of safety training affect the number of factory accidents? Conduct a test of hypothesis at the 5% level of significance. Statistics Canada provides "microdata, "based on census data for Canada. The microdata files contain representative samples of census data. You can access these data sets at the Statistics Canada website, ...
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