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A major insurance company looked at teen cell phone use, specifically while driving. Eighty-two percent were...

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Basic Math

A major insurance company looked at teen cell phone use,specifically while driving. Eighty-two percent were using phones inthe sample of fifty drivers.

a. Construct the 95% confidence interval forthe proportion of all teenagers that have used cell phones whiledriving. (Round answers to 2 decimalplaces.)

b. What is the margin of error with 95%confidence? (Round answer to 2 decimalplaces.)

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