Homework: Lesson 23 Problems Question 6, 7.1.13 HW Scor Part 2 of 4 Point 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 = 944 and x = 516 who said "yes." Use a 95% confidence level. Click the icon to view a table of z scores. I.... a) Find the best point estimate of the population proportion p. 0.547 (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.)