In 2008, 17% of American homes were protected by a home security system. A marketing firm wanted
Question:
In 2008, 17% of American homes were protected by a home security system. A marketing firm wanted to estimate the proportion of protected homes today. It chose a random sample of 200 homes and discovered that 53 had home security systems. Estimate the true proportion of homes with security systems with 99% confidence.
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Related Book For 
Elementary Statistics A Step By Step Approach
ISBN: 9780077665807
9th Edition
Authors: Allan G. Bluman
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