The 2017 Chapman University Survey of American Fears asked a random sample of 1207 American adults if they believed that aliens had come to Earth below. modern times, and 26% responded yes Complete parts (a) through (d) a. What is the standard error for this estimate of the percentage of all Americans who believe that aliens have come to Earth in modern times? 0.0126 (Round to four decimal places as needed.) b. Find a 95% confidence intérval for the proportion of all Americans who believe that aliens have come to Earth in modern times. %.%) (Round to two decimal places as neėded.)
The 2017 Chapman University Survey of American Fears asked a random sample of 1207 American adults if they believed that aliens had come to Earth below. modern times, and 26% responded yes Complete parts (a) through (d) a. What is the standard error for this estimate of the percentage of all Americans who believe that aliens have come to Earth in modern times? 0.0126 (Round to four decimal places as needed.) b. Find a 95% confidence intérval for the proportion of all Americans who believe that aliens have come to Earth in modern times. %.%) (Round to two decimal places as neėded.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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C. What is the margin of error for the 95% confidence interval?
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The 2017 Chapman University Survey of American Fears asked a random sample of 1207 American adults if they believed that aliens had come to Earth in modern times, and 26% responded yes. Complete parts (a) through (d)
below.
a. What is the standard error for this estimate of the percentage of all Americans who believe that aliens have come to Earth in modern times?
00126 (Round to four decimal places as needed.)
b. Find a 95% confidence interval for the proportion of all Americans who believe that aliens have come to Earth in modern times.
((% %) (Round to two decimal places as neèded,)
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