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In a survey of 2,395 adults, 1,916 reported that e-mails are easy to misinterpret, but only 1,269 reported that telephone conversations are easy to misinterpret. (Data extracted from "Open to Misinterpretation," USA Today, July 17, 2007, p. 1D.)

a)Construct a 95% confidence interval estimate for the population proportion of adults who report that e-mails are easy to misinterpret.

b)Construct a 95% confidence interval estimate for the population proportion of adults who report that telephone conversations are easy to misinterpret.

c)Compare the results of (a) and (b).

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