A Population Proportion · Exercise 49
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 97% confidence interval for the proportion of American adults who believe that a terrorist attack in their community is likely or very likely. Explain what this confidence interval means in the context of the problem.
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OpenStax, Introductory Statistics 2e · §8.3 A Population Proportion · Exercise 49
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