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Example 3

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.
  1. Determine the given information.
  2. Determine the confidence interval.
This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit www.walch.com for more information.