6th Edition

ISBN: 9781259957598

Author: DOANE

Publisher: RENT MCG

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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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Textbook Question

Chapter 9, Problem 96CE

Beer shelf life is a problem for brewers and distributors because when beer is stored at room temperature, its flavor deteriorates. When the average furfuryl ether content reaches 6 μg per liter, a typical consumer begins to taste an unpleasant chemical flavor. (a) At α = .05, would the following sample of 12 randomly chosen bottles stored for a month convince you that the mean furfuryl ether content exceeds the taste threshhold? (b) What is the p-value?

6.53, 5.68, 8.10, 7.50, 6.32, 8.75, 5.98, 7.50, 5.01, 5.95, 6.40, 7.02

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Chapter 9, Problem 95CE

Chapter 9, Problem 97CE

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Chapter 9 Solutions

APPLIED STAT.IN BUS.+ECONOMICS

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Solution Summary: The author states that the average furfuryl ether content per liter does not exceed the taste threshold.

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