Practice 3 questions 2Please explain the answer to the question and solutions

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=977 and x=568 who said "yes." Use a 99% confidence level ta Click the icon to view a table of z scores. ery a) Find the best point estimate of the population proportion p. rd (Round to three decimal places as needed.) b) Identify the value of the margin of error E. E=] ecil (Round to three decimal places as needed.) c) Construct the confidence interval.