As part of the Pew Internet and American Life Project,, researchers conducted two surveys in late 2009. The first survey asked a random sample of 800 U.S. teens about their use of social media and the Internet. A second survey posed similar questions to a random sample of 2253 U.S. adults. In these two studies, 584 of the teens and 1059 of the adults said that they use social networking sites. Construct a 95% confidence interval for the difference in population proportion

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