What proportion of U.S. residents receive a jury summons each year? A polling organization plans to survey a random sample of 500 U.S. residents to find out. Let p ^ be the proportion of residents in the sample who received a jury summons in the previous 12 months. According to the National Center for State Courts, 15\% of U.S. residents receive a jury summons each year. Suppose that this claim is true. .