There are big spenders among University of Alabama football season ticket holders. This data set Roll Tide!! shows the dollar amount of the purchases made at the previous two Alabama home football games by 479 season ticket holders randomly selected from all season ticket holders. The Univ. of Alabama marketing department is considering a special event hosted by the governor at the next home game for season ticket holders who spent $1000 or more at the previous two home football games. From these data construct a 95% confidence interval for the proportion p of all Alabama football season ticket holders who will qualify for the special event.