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=994 and x = 587 who said "yes." Use a 90% confidence level. 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. E= (Round to three decimal places as needed.) c) Construct the confidence interval.
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=994 and x = 587 who said "yes." Use a 90% confidence level. 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. E= (Round to three decimal places as needed.) c) Construct the confidence interval.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text: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=994 and x = 587 who said "yes." Use a 90% confidence level.
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.
0<P<0
(Round to three decimal places as needed.)
d) Write a statement that correctly interprets the confidence interval. Choose
correct answer below.
CH
O A. There is a 90% chance that the true value of the population proportion will fall between the lower bound and the upper bound.
O B. 90% of sample proportions will fall between the lower bound and the upper bound.
O C. One has 90% 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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