A wine importer needs to report the average percentage of alcohol in bottles of French wine. From
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A wine importer needs to report the average percentage of alcohol in bottles of French wine. From experience with previous kinds of wine, the importer believes the population standard deviation is 1.2%. The importer randomly samples 60 bottles of the new wine and obtains a sample mean x-bar = 9.3%. Give a 90% confidence interval for the average percentage of alcohol in all bottles of the new wine.
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Related Book For
Complete Business Statistics
ISBN: 9780077239695
7th Edition
Authors: Amir Aczel, Jayavel Sounderpandian
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