A random sample of 1,000 retirees found that 28% participate in activities at their local senior center. Find a 95% confidence interval for the proportion of seniors who participate in activities at their local senior center.
[list=1] [*]Determine the given information. [*]Determine the confidence interval. [/list] This applet is provided by Walch Education as supplemental material for the [i]UCSS Secondary Math III[/i] program. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on our resources.