Data Set 19 in Appendix B lists weights (lb) of the cola in cans of regular Coke and diet Coke. Use a 0.05 significance level to test the claim that the samples are from populations with the same median. If there appears to be a difference, try to explain it.
Answer to relevant QuestionsThe Mann-Whitney U test is equivalent to the Wilcoxon rank-sum test for independent samples in the sense that they both apply to the same situations and always lead to the same conclusions. In the Mann-Whitney U test we ...Jeff Parent is a statistics instructor who participates in triathlons. Listed below are times (in minutes and seconds) he recorded while riding a bicycle for five laps through each mile of a 3-mile loop. Use a 0.05 ...Refer to Data Set 13 in Appendix B and use the pelvis decel-eration measurements for small cars, midsize cars, and large cars. Use a 0.05 significance level to test the claim that the different size categories have the same ...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 ...An alternative to using Table A-9 to find critical values for rank correlation is to compute them using this approximation:
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