2nd Edition

ISBN: 9781269391757

Author: Triola

Publisher: PEARSON C

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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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Chapter 8.2, Problem 20BSC

Finding P-Values and Critical Values. In Exercises 17-24, assume that the significance level is α = 0.05; use the given statement and find the P-value and critical values. (See Figure 8-4.)

20. The test statistic of z = 1.50 is obtained when testing the claim that p ≠ 0.25.

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Chapter 8.2, Problem 19BSC

Chapter 8.2, Problem 21BSC

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Chapter 8 Solutions

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Finding P-Values and Critical Values . In Exercises 17-24, assume that the significance level is α = 0.05; use the given statement and find the P-value and critical values. (See Figure 8-4.) 20 . The test statistic of z = 1.50 is obtained when testing the claim that p ≠ 0.25.

Solution Summary: The author explains how the P-value is 0.1336 and the critical value is pm 1.960.

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Chapter 8 Solutions