MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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2-Proportion Test
In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.
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In a recent poll, 140 people were asked if they liked dogs, and 87% said they did. Find the margin of error of this poll, at the 99% confidence level.

Give your answer as a decimal, rounded to three decimal places.

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