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=913 and x=560 who said"yes." Use a 95% confidence level.

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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) Write a statement that correctly interprets the confidence interval. Choose the correct answer below.

A.

One has 95% confidence that the interval from the lower bound to the upper bound actually does contain the true value of the population proportion.

B.

One has 95% confidence that the sample proportion is equal to the population proportion.

C.

There is a 95% chance that the true value of the population proportion will fall between the lower bound and the upper bound.

D.

95% of sample proportions will fall between the lower bound and the upper bound.