A poll of 1785 U.S. adults found that 900 U.S. adults, or 50.42% 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: % 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):
A poll of 1785 U.S. adults found that 900 U.S. adults, or 50.42% 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: % 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):
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:A poll of 1785 U.S. adults found that 900 U.S. adults, or 50.42% 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
%
%
The margin of error reflects the precision or accuracy of our estimate. Therefore, as the confidence level
increases, the margin of error
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