Same-sex marriage: In a recent nationwide ABC News/Washington Post poll, adults were asked to answer the question, "Overall, do you support or oppose allowing gays and lesbians to marry legally?" Suppose of the 1203 respondents, 503 of them support same-sex marriage. Find the 95% confidence interval for the proportion of all American adults who support same-sex marriage? http://www.washingtonpost.com/page/2010-2019/WashingtonPost/2015/04/23/National-Politics/Polling/release_395.xml. Use Z = 1.96. Use the unrounded values in Excel to find the answers to #2, #3 and #4. Find the sample proportion for adults who support same-sex marriage? The standard error for sample proportion has a value of The margin of error has a value of Find the 95% confidence interval for adults who support same-sex marriage.( , )