Same-sex marriage: In a recent ABC News/Washington Post poll, 1,016 adults nationwide answered the question, "Overall, do you support or oppose allowing gays and lesbians to marry legally?" Of the respondents, 619 support same-sex marriage. What is the 95% confidence interval for the proportion of all American adults who support same-sex marriage? http://www.washingtonpost.com/page/2010-2019/Washington Post/2015/04/23/National- Politics/Polling/release_395.xml (0.570, 0.648) (0.584, 0.634) (0.579, 0.639) (0.594, 0.624)