Refer to the sample data in Exercise 1. Assuming that we use the Wilcoxon rank-sum test with those data, identify the null hypothesis and all possible alternative hypotheses.
Answer to relevant QuestionsRefer to Table 13-2 in Section 13-1 and identify the efficiency of the Wilcoxon rank-sum test. What does that value tell us about the test? Data Set 5 in Appendix B lists full IQ scores for a random sample of subjects with medium lead levels in their blood and another random sample of subjects with high lead levels in their blood. Use a 0.05 significance level ...For the data given in Exercise 1, identify the values of n1, n2, n3, and N. Refer to Data Set 10 in Appendix B and use the amounts of nicotine (mg per cigarette) in the king-size cigarettes, the 100-mm menthol cigarettes, and the 100-mm nonmenthol cigarettes. The king-size cigarettes are ...The following table lists overall qual¬ity scores and prices for a gallon of exterior paints. Do these data suggest that you can get better quality by spending more? Use the rank correlation coefficient to test for a ...
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