Zobserved Zeritical left Zeritical right= We the null hypothesis. We conclude that the current proportion of Americans who approve of the job that the Supreme Court is doing is 44%.
Zobserved Zeritical left Zeritical right= We the null hypothesis. We conclude that the current proportion of Americans who approve of the job that the Supreme Court is doing is 44%.
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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Question
In a poll conducted by The New York Times and CBS News, 44% of Americans approve of the job that the Supreme Court is doing (The New York Times, June 8, 2012). Assume that this percentage was true for the population of Americans at the time of this poll was conducted. A recent poll of 1339 Americans showed that 38% of them approve of the job that the Supreme Court is doing. At a 10% significance level, can you conclude that the current proportion of Americans who approve of the job that the Supreme Court is doing is different from 44%?
Transcribed Image Text:In a poll conducted by The New York Times and CBS News, 44% of Americans approve of the job that the Supreme Court is doing (The
New York Times, June 8, 2012). Assume that this percentage was true for the population of Americans at the time of this poll was
conducted. A recent poll of 1339 Americans showed that 38% of them approve of the job that the Supreme Court is doing. At a 10%
significance level, can you conclude that the current proportion of Americans who approve of the job that the Supreme Court is doing
is different from 44%?
Round your answers to two decimal places.
Zobserved = i
Zcritical left
i
Zeritical right
We
the null hypothesis.
We conclude that the current proportion of Americans who approve of the job that the Supreme Court is doing is
44%.
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