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In a recent Zogby International Poll, nine of 48 respondents rated the likelihood of a terrorist attack in their community as likely or very likely.
In a recent Zogby International Poll, nine of 48 respondents rated the likelihood of a terrorist attack in their community as "likely" or "very likely". Use the "plus four" method to create a 98% confidence interval for the proportion of American adults who believe that a terrorist attack in their community is likely or very likely. Interpret your confidence interval.
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