Question: 12 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
12
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 thepoll, n=965 and x=541 who said"yes." Use a 99% confidence level.
a) Find the best point estimate of the population proportion p.
(Round to three decimal places asneeded.)
b) Identify the value of the margin of error E.
E=
(Round to three decimal places asneeded.)
c) Construct the confidence interval.
(Round to three decimal places asneeded.)
d) a statement that correctly interprets the confidence interval. Choose the correct answer below.
A.
One has 99% confidence that the sample proportion is equal to the population proportion.
B.
99% of sample proportions will fall between the lower bound and the upper bound.
C.
There is a 99% chance that the true value of the population proportion will fall between the lower bound and the upper bound.
D.
One has 99% confidence that the interval from the lower bound to the upper bound actually does contain the true value of the population proportion.
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