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=505
who said "yes." Use a
95%
confidence level. Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion
p
. (Round to three decimal places as needed.) b) Identify the value of the margin of error
E
.
=
(Round to three decimal places as needed.) c) Construct the confidence interval.
95%95%95%95%
(Round to three decimal places as needed.)
d