Statistics Through Applications
Statistics Through Applications
2nd Edition
ISBN: 9781429219747
Author: Daren S. Starnes, David Moore, Dan Yates
Publisher: Macmillan Higher Education
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Concept explainers

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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Question
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Chapter 5.1, Problem 5.25E
To determine

To explain why or why not that 90% is likely to be biased estimate for the true of Denver households with an adult who has read at least one book in the last month.

Expert Solution & Answer
Check Mark

Answer to Problem 5.25E

Yes.

Explanation of Solution

Yes it is, since the sample only included those with library cards, it means that surveyors sampled a population more inclined to read. To get an unbiased result, the survey should be conducted on 400 randomly selected households.

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Chapter 5.1, Problem 5.24E
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Chapter 5.1, Problem 5.26E

Chapter 5 Solutions

Statistics Through Applications

Ch. 5.1 - Prob. 5.1ECh. 5.1 - Prob. 5.2ECh. 5.1 - Prob. 5.3ECh. 5.1 - Prob. 5.4ECh. 5.1 - Prob. 5.5ECh. 5.1 - Prob. 5.6ECh. 5.1 - Prob. 5.7ECh. 5.1 - Prob. 5.8ECh. 5.1 - Prob. 5.9ECh. 5.1 - Prob. 5.10E
Ch. 5.1 - Prob. 5.11ECh. 5.1 - Prob. 5.12ECh. 5.1 - Prob. 5.13ECh. 5.1 - Prob. 5.14ECh. 5.1 - Prob. 5.15ECh. 5.1 - Prob. 5.16ECh. 5.1 - Prob. 5.17ECh. 5.1 - Prob. 5.18ECh. 5.1 - Prob. 5.19ECh. 5.1 - Prob. 5.20ECh. 5.1 - Prob. 5.21ECh. 5.1 - Prob. 5.22ECh. 5.1 - Prob. 5.23ECh. 5.1 - Prob. 5.24ECh. 5.1 - Prob. 5.25ECh. 5.1 - Prob. 5.26ECh. 5.2 - Prob. 5.27ECh. 5.2 - Prob. 5.28ECh. 5.2 - Prob. 5.29ECh. 5.2 - Prob. 5.30ECh. 5.2 - Prob. 5.31ECh. 5.2 - Prob. 5.32ECh. 5.2 - Prob. 5.33ECh. 5.2 - Prob. 5.34ECh. 5.2 - Prob. 5.35ECh. 5.2 - Prob. 5.36ECh. 5.2 - Prob. 5.37ECh. 5.2 - Prob. 5.38ECh. 5.2 - Prob. 5.39ECh. 5.2 - Prob. 5.40ECh. 5.2 - Prob. 5.41ECh. 5.2 - Prob. 5.42ECh. 5.2 - Prob. 5.43ECh. 5.2 - Prob. 5.44ECh. 5.2 - Prob. 5.45ECh. 5.2 - Prob. 5.46ECh. 5.2 - Prob. 5.47ECh. 5.2 - Prob. 5.48ECh. 5.2 - Prob. 5.49ECh. 5.2 - Prob. 5.50ECh. 5.2 - Prob. 5.51ECh. 5.2 - Prob. 5.52ECh. 5.2 - Prob. 5.53ECh. 5.2 - Prob. 5.54ECh. 5.3 - Prob. 5.55ECh. 5.3 - Prob. 5.56ECh. 5.3 - Prob. 5.57ECh. 5.3 - Prob. 5.58ECh. 5.3 - Prob. 5.59ECh. 5.3 - Prob. 5.60ECh. 5.3 - Prob. 5.61ECh. 5.3 - Prob. 5.62ECh. 5.3 - Prob. 5.63ECh. 5.3 - Prob. 5.64ECh. 5.3 - Prob. 5.65ECh. 5.3 - Prob. 5.66ECh. 5.3 - Prob. 5.67ECh. 5.3 - Prob. 5.68ECh. 5.3 - Prob. 5.69ECh. 5.3 - Prob. 5.70ECh. 5.3 - Prob. 5.71ECh. 5.3 - Prob. 5.72ECh. 5.3 - Prob. 5.73ECh. 5.3 - Prob. 5.74ECh. 5.3 - Prob. 5.75ECh. 5.3 - Prob. 5.76ECh. 5 - Prob. 5.77RECh. 5 - Prob. 5.78RECh. 5 - Prob. 5.79RECh. 5 - Prob. 5.80RECh. 5 - Prob. 5.81RECh. 5 - Prob. 5.82RECh. 5 - Prob. 5.83RECh. 5 - Prob. 5.84RECh. 5 - Prob. 5.85RECh. 5 - Prob. 5.86RE

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