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: % to 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 % 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. % to % %
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: % to 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 % 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. % to % %
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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![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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1942d21f-1f68-402e-935c-586383b38458%2Fe0ae00a5-dd46-4175-af33-8eb441bf1c44%2Fwh5e3u_processed.png&w=3840&q=75)
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.
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