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a) What is the mean of the sampling distribution? b) What is the standard deviation of the sampling distribution? (give 4 decimal places) c) For a sample of 200 Americans, what is the probability that at least 132 would favor such a tax?

a) What is the mean of the sampling distribution? b) What is the standard deviation of the sampling distribution? (give 4 decimal places) c) For a sample of 200 Americans, what is the probability that at least 132 would favor such a tax?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A New York Times/CBS News Poll conducted in April 2007 reported that 72% of Americans would favor an increased federal tax on gasoline if it would reduce dependence on foreign oil. Use the normal approximation to answer the following: For a sample of 200 Americans, what is the probability that at least 132 would favor such a tax? Don't forget the continuity correction! a) What is the mean of the sampling distribution? b) What is the standard deviation of the sampling distribution? (give 4 decimal places) c) For a sample of 200 Americans, what is the probability that at least 132 would favor such a tax? Don't forget the continuity correction! (round z-scores to 2 decimal places)
Transcribed Image Text:A New York Times/CBS News Poll conducted in April 2007 reported that 72% of Americans would favor an increased federal tax on gasoline if it would reduce dependence on foreign oil. Use the normal approximation to answer the following: For a sample of 200 Americans, what is the probability that at least 132 would favor such a tax? Don't forget the continuity correction! a) What is the mean of the sampling distribution? b) What is the standard deviation of the sampling distribution? (give 4 decimal places) c) For a sample of 200 Americans, what is the probability that at least 132 would favor such a tax? Don't forget the continuity correction! (round z-scores to 2 decimal places)
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