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=915 and x = 575 who said "yes." Use a 90% confidence level. Click the icon to view a table of z scores. ... 0
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=915 and x = 575 who said "yes." Use a 90% confidence level. Click the icon to view a table of z scores. ... 0
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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=915 and x = 575 who said "yes." Use a 90% confidence level.
Click the icon to view a table of z scores.
CE
0<P<0
(Round to three decimal places as needed.).
d) Write a statement that correctly interprets the confidence interval. Choose the correct answer below.
OA. One has 90% confidence that the sample proportion is equal to the population proportion.
B. 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.
O c. 90% of sample proportions will fall between the lower bound and the upper bound.
OD. There is a 90% chance that the true value of the population proportion will fall between the lower bound and the upper bound.
L
Transcribed Image Text:Use the sample data and confidence level given below to complete parts (a) through (d).
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A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=915 and x = 575 who said "yes." Use a 90% 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.
E
(Round to three decimal places as needed.)
c) Construct the confidence interval
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