Hardly a day goes by without some new poll being published.Polls influence the choice of candidates and the direction of theirpolicies, especially during election campaigns. For example, theGallup Organization polled 1012 American adults, asking them, ``Doyou think there should or should not be a law that would ban thepossession of handguns, except by the police and other authorizedpersons?'' Of 1012 randomly chosen respondents, 374 said that thereshould be such a law. Construct a 95% confidence interval for thepopulation proportion of all American adults who think there shouldbe such a law.
