please answer all parts

Use the sample data and condence level given below to complete parts (a) through [d]. A research institute poll asked respondents if they felt vulnerable to identity.r thett. In the poll, n = 10 11 and x = 550 who said \"yes." Use a 99% condence level. a Click the icon to view a table ofz scores. a] Find the best point estimate of the population proportion p. E] (Round to three decimal places as needed.) b) Identify the value of the margin of error E. E=j (Round to three decimal places as needed.) c] Constmct the condence intenral.