A poll found that 78% of a random sample of 1085 adults said that they believe in ghosts. .***. a. Determine the margin of error for a 99% confidence interval. E = |(Round to three decimal places as needed.) b. Without doing any calculations, indicate whether the margin of error is larger or smaller for a 90% confidence interval. O A. The margin of error will be about the same for a 90% confidence in the interval. O B. The margin of error will be smaller for a 90% confidence in the interval. O C. The margin of error will be larger for a 90% confidence in the interval.
A poll found that 78% of a random sample of 1085 adults said that they believe in ghosts. .***. a. Determine the margin of error for a 99% confidence interval. E = |(Round to three decimal places as needed.) b. Without doing any calculations, indicate whether the margin of error is larger or smaller for a 90% confidence interval. O A. The margin of error will be about the same for a 90% confidence in the interval. O B. The margin of error will be smaller for a 90% confidence in the interval. O C. The margin of error will be larger for a 90% confidence in the interval.
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 found that 78% of a random sample of 1085 adults said that they believe in ghosts.
.....
a. Determine the margin of error for a 99% confidence interval.
E =
(Round to three decimal places as needed.)
b. Without doing any calculations, indicate whether the margin of error is larger or smaller for a 90% confidence interval.
O A. The margin of error will be about the same for a 90% confidence in the interval.
O B. The margin of error will be smaller for a 90% confidence in the interval.
O C. The margin of error will be larger for a 90% confidence in the interval.
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