MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
Bartleby Related Questions Icon

Related questions

Question
100%
A poll of 1070 U.S. adults found that 563 U.S. adults, or 52.617% regularly used Facebook as a news source.
Find the margin of error and confidence interval for the percentage of U.S. adults who regularly use
Facebook as a news source, at the 90% level of confidence. Express all answers as percentages rounded to
2 decimal places. Do not write the percent sign.
Margin of Error (as a percentage):
Confidence Interval:
Margin of Error (as a percentage):
Confidence Interval:
Now find the margin of error and confidence interval for the percentage of U.S. adults who regularly use
Facebook as a news source, at the 95% level of confidence.
Margin of Error (as a percentage):
Confidence Interval:
% to
O increases
O stays roughly the same
O decreases
% to
Finally, find the margin of error and confidence interval for the percentage of U.S. adults who regularly use
Facebook as a news source, at the 99% level of confidence.
and the precision of our estimate
O decreases
O increases
O stays roughly the same
%
% to
%
The margin of error reflects the precision or accuracy of our estimate. Therefore, as the confidence level
increases, the margin of error
%
NOTE: A wide confidence interval is not as precise as a narrow confidence interval. Therefore a smaller
margin of error gives a more precise interval estimate, while a larger margin of error gives a wider interval
and is not as precise.
expand button
Transcribed Image Text:A poll of 1070 U.S. adults found that 563 U.S. adults, or 52.617% regularly used Facebook as a news source. Find the margin of error and confidence interval for the percentage of U.S. adults who regularly use Facebook as a news source, at the 90% level of confidence. Express all answers as percentages rounded to 2 decimal places. Do not write the percent sign. Margin of Error (as a percentage): Confidence Interval: Margin of Error (as a percentage): Confidence Interval: Now find the margin of error and confidence interval for the percentage of U.S. adults who regularly use Facebook as a news source, at the 95% level of confidence. Margin of Error (as a percentage): Confidence Interval: % to O increases O stays roughly the same O decreases % to Finally, find the margin of error and confidence interval for the percentage of U.S. adults who regularly use Facebook as a news source, at the 99% level of confidence. and the precision of our estimate O decreases O increases O stays roughly the same % % to % The margin of error reflects the precision or accuracy of our estimate. Therefore, as the confidence level increases, the margin of error % NOTE: A wide confidence interval is not as precise as a narrow confidence interval. Therefore a smaller margin of error gives a more precise interval estimate, while a larger margin of error gives a wider interval and is not as precise.
Expert Solution
Check Mark
Knowledge Booster
Background pattern image
Similar questions
Recommended textbooks for you
Text book image
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Text book image
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Text book image
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Text book image
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
Text book image
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Text book image
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman