1. Use the sample data and confidence level given below to complete parts (a) through (d).

A drug is used to help prevent blood clots in certain patients. In clinical trials, among 4214

patients treated with the drug, 116 developed the adverse reaction of nausea. Construct a

99% confidence interval for the proportion of adverse reactions.

a) Find the best point estimate of the population proportion p.

enter your response here

(Round to three decimal places as needed.)

b) Identify the value of the margin of error E.

E=enter your response here

(Round to three decimal places as needed.)

c) Construct the confidence interval.

enter your response here

(Round to three decimal places as needed.)

d) Write 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. 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.

D. There is a 99% chance that the true value of the population proportion will fall between the lower bound and the upper bound.

7. 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=928 and x=575 who said "yes." Use a 99% confidence level.

a) Find the best point estimate of the population proportion p.enter your response here

(Round to three decimal places as needed.)

b) Identify the value of the margin of error E.

E=enter your response here

(Round to three decimal places as needed.)

c) Construct the confidence interval.

enter your response here

(Round to three decimal places as needed.)

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

A. 99% of sample proportions will fall between the lower bound and the upper bound.

B. There is a 99% chance that the true value of the population proportion will fall between the lower bound and the upper bound.

C.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.

D. One has 99% confidence that the sample proportion is equal to the population proportion.