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Wilcoxon RankSum Test. In Exercises 58, use the Wilcoxon ranksum test.Clinical Trials of

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 7 Chapter 13-4

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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Problem 7

Wilcoxon RankSum Test. In Exercises 58, use the Wilcoxon ranksum test.Clinical Trials of Lipitor The sample data below are changes in LDL cholesterol levels in clinical trials of Lipitor (atorvastatin). It was claimed thatLipitor had an effect on LDL cholesterol. (The data are based on results given in a ParkeDavis memo from David G. Orloff, M.D., the medical teamleader for clinical trials of Lipitor. Pfizer declined to provide the author with the original data values.) Negative values represent decreases in LDLcholesterol. Use a 0.05 significance level to test the claim that for those treated with 20 mg of atorvastatin and those treated with 80 mg of atorvastatin,changes in LDL cholesterol have the same median. What do the results suggest?Group treated with 20 mg of atorvastatin : 28 32 29 39 31 35 25 36 35 26 29 34 30 Group treated with 80 mg of atorvastatin : 42 41 38 42 41 41 40 44 32 37 41 37 34 31

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Inference for two independent groups: - This means deciding if there’s a statistically significant relationship between explanatory and response variable - If response variable is quantitative, the question involves means o Ex. How does average childhood weight compare between...

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Chapter 13-4, Problem 7 is Solved
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Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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Wilcoxon RankSum Test. In Exercises 58, use the Wilcoxon ranksum test.Clinical Trials of

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