Public Policy and Political Science
Early in 2013, a political report indicated that 86% of Americans disapprove of the job Congress is doing. In a poll of 1000 Americans during Summer 2013 by NBC News, 830 said they disapprove of the job Congress is doing.
Is there any evidence to suggest that the proportion of Americans who disapprove of the job Congress is doing has decreased? Use a = 0.01.