According to BusinessWeek, many Japanese consider their cell phones toys rather than tools. If a random sample
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According to BusinessWeek, many Japanese consider their cell phones toys rather than tools. If a random sample of 200 Japanese cell phone owners reveals that 80 of them consider their device a toy, calculate a 90% confidence interval for the population proportion of Japanese cell phone users who feel this way.
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Related Book For
Complete Business Statistics
ISBN: 9780077239695
7th Edition
Authors: Amir Aczel, Jayavel Sounderpandian
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