A Rasmusen report, conducted in March of 2014, finds that 36% of American Adults say they are overweight. The margin of error was reported at 3% for a 95% confidence interval. Give the 95% confidence interval for the percent of all American adults that say they are overweight.
http://www.rasmussenreports.com/public_content/lifestyle/general_lifestyle/february_2014/67_consider_themselves_healthy_eaters
http://win.niddk.nih.gov/statistics/ (Links to an external site.) Claims that more than 66% of adults are overweight or obese.