13
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
I only need part D answered. Thank you.
![Use the sample data and confidence level given below to complete parts (a) through (d).
In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2559 subjects randomly selected from an online group involved with
ears. 1120 surveys were returned. Construct a 99% confidence interval for the proportion of returned surveys.
E Click the icon to view a table of z scores.
0.413 <p<0.463
(Round to three decimal places as needed.)
d) Write a statement that correctly interprets the confidence interval. Choose the correct answer below.
O A. 99% of sample proportions will fall between the lower bound and the upper bound.
O B. There is a 99% chance that the true value of the population proportion will fall between the lower bound and the upper bound.
O 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.
O D. One has 99% confidence that the sample proportion is equal to the population proportion.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9f6b24cc-bd5a-411c-8665-637e9984c151%2Fb221a82f-97ee-46af-b128-62cba504e481%2Fksk5p8j_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Use the sample data and confidence level given below to complete parts (a) through (d).
In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2559 subjects randomly selected from an online group involved with
ears. 1120 surveys were returned. Construct a 99% confidence interval for the proportion of returned surveys.
E Click the icon to view a table of z scores.
0.413 <p<0.463
(Round to three decimal places as needed.)
d) Write a statement that correctly interprets the confidence interval. Choose the correct answer below.
O A. 99% of sample proportions will fall between the lower bound and the upper bound.
O B. There is a 99% chance that the true value of the population proportion will fall between the lower bound and the upper bound.
O 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.
O D. One has 99% confidence that the sample proportion is equal to the population proportion.
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