Explanation Formula Used: Margin of Error = 1 / n Calculation: Margin of Error = 1 / 1020 Margin of Error = 0.0313 95 % confidence interval = {(0...

6th Edition

ISBN: 8220100802713

Author: Briggs

Publisher: PEARSON

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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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Chapter 6.D, Problem 31E

To determine

Margin of error and the 95% confidence interval for the survey done by Gallup Poll stating that 74 % of 1020 Americans surveyed supported a law that would lower tax rates for businesses that create jobs in the United States.

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Chapter 6.D, Problem 30E

Chapter 6.D, Problem 32E

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Chapter 6 Solutions

EBK USING AND UNDERSTANDING MATHEMATICS

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