Answered: Use the sample data and confidence…

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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Question

Use the sample data and confidence level given below to complete parts (a) through (d).
A research institute poll asked respondents if they acted to annoy a bad driver. In the poll, n=2468, and x=935 who said that they honked. Use a 95% confidence level.
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Part 1
a) Find the best point estimate of the population proportion p.
enter your response here
(Round to three decimal places as needed.)
Part 2
b) Identify the value of the margin of error E.
E=enter your response here
(Round to four decimal places as needed.)
Part 3
c) Construct the confidence interval.
enter your response here<p<enter your response here
(Round to three decimal places as needed.)
Part 4
d) Write a statement that correctly interprets the confidence interval. Choose the correct answer below.
A.
There is a 95% chance that the true value of the population proportion will fall between the lower bound and the upper bound.
B.
95% of sample proportions will fall between the lower bound and the upper bound.
C.
One has 95% confidence that the sample proportion is equal to the population proportion.
D.
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.