A modification has been made to one assembly line for a particular automobile chassis. Because the modification
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A modification has been made to one assembly line for a particular automobile chassis. Because the modification involves extra cost, it will be implemented throughout all lines only if sample data strongly indicates that the modification has decreased true average assembly time by more than 1 h. Assuming that the assembly time distributions differ only with respect to location if at all, use the Wilcoxon ranksum test at level .05 on the accompanying data (also in hours) to test the appropriate hypotheses.
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Here are the null and alternative hypotheses for this test Null Hypothesis H0 The modification has n...View the full answer
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Related Book For 
Modern Mathematical Statistics With Applications
ISBN: 9783030551551
3rd Edition
Authors: Jay L. Devore, Kenneth N. Berk, Matthew A. Carlton
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