The General Social Survey (GSS) has been collecting demographic, behavioral, and attitudinal information since 1972 to monitor changes within the US and to compare the US to other nations. Support for capital punishment (the death penalty) in the US is shown in 1974 and in 2006 in the two-way table in Table 1. Oppose Year 1974 2006 Favor 937 1945 473 Total 1410 2815 870 Table 1 Has public support for capital punishment changed? Find a 95% confidence interval for the difference in the two proportions, p1-p2, where p1 and p2 represent the proportion supporting capital punishment in 2006 and 1974, respectively. The standard error of the sample difference in proportions is 0.015. What is the upper bound of your interval as a proportion? Round your answer to three decimal places. Has Support for Capital Punishment Changed over Time?
