Create a 90% confidence interval estimate for the difference in the proportions of customers who bought the

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Create a 90% confidence interval estimate for the difference in the proportions of customers who bought the extended warranty for the two promotion methods described in Exercise 4 above. Do you expect this interval to include zero? Why or why not?

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Analyzing Data And Making Decisions Statistics For Business Microsoft Excel 2010 Updated

ISBN: 9780132924962

2nd Edition

Authors: Judith Skuce

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Question Posted: Jul 12, 2015 04:44 AM

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Create a 90% confidence interval estimate for the difference in the proportions of customers who bought the

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Analyzing Data And Making Decisions Statistics For Business Microsoft Excel 2010 Updated

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