Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n = 1002 and x -553 who said "yes." Use a 90% confidence level. Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. 0.552 (Round to three decimal places as needed.) b) Identify the value of the margin of error E E =[ (Round to three decimal places as needed.) Clear all Check answer Help me solve this View an example Get more help - Media - 10:17 PM 30OF ~ 0 O 1/29/2022 Type here to search DELL FO F10 D R W Tab S D Caps Lock N M Z X Cur