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Cell phones in the home A survey found that 73% of Americans have a home phone, 83% have

Stats Modeling the World | 4th Edition | ISBN: 9780321854018 | Authors: David E. Bock, Paul F. Velleman, Richard D. De Veaux ISBN: 9780321854018 481

Solution for problem 31 Chapter 14

Stats Modeling the World | 4th Edition

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Stats Modeling the World | 4th Edition | ISBN: 9780321854018 | Authors: David E. Bock, Paul F. Velleman, Richard D. De Veaux

Stats Modeling the World | 4th Edition

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Problem 31

Cell phones in the home A survey found that 73% of Americans have a home phone, 83% have a cell phone and 58% of people have both. a) If a person has a home phone, whats the probability that they have a cell phone also? b) Are having a home phone and a cell phone independent events? Explain. c) Are having a home phone and a cell phone mutually exclusive? Explain.

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Week 9: Confidence Intervals 1 November 2016 Basic Statistics for Research Professor HK Dong Wendy Liu If the population is not normal:  We can apply the Central Limit Theorem  Sample means from the population will be approximately normal as long as the sample size is large enough Properties of the sampling distribution:  Mean of the sample means is the population mean:  Standard deviation of the sample means is the population standard deviation divided by the square root of sample size: For most distributions, n>30 will give a sampling distribution that is approximately normal Z-value for sampling distributions of x-bar Binomial distribution conversion to z-score: The normal distribution can be used to approximate the binomial distr

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Chapter 14, Problem 31 is Solved
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Textbook: Stats Modeling the World
Edition: 4
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
ISBN: 9780321854018

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Cell phones in the home A survey found that 73% of Americans have a home phone, 83% have