In a survey of 1020 adults, a poll asked, "Are you worried or not worried about having enough money for retirement?

In a survey of 1020 adults, a poll asked, "Are you worried or not worried about having enough money for retirement?" Of the 1020 surveyed, 615 stated that they were worried about having enough money for retirement. Construct a 99% confidence interval for the proportion of adults who are worried about having enough money for retirement.