As part of a Pew Research Center poll, subjects were asked if there is solid evidence that the earth is getting warmer. Among 1855 respondents, 406 said that there is no such evidence. Use a 1% significance level to test the claim that less than 25% of the population believes that there is not solid evidence that the earth is getting warmer. State the null and alternative hypothesis What is the test statistics? What is the critical value? What is the P-value? What can you conclude? Can a hypothesis test be used to "prove" that less than 25% of the population believe that there is not solid evidence that the earth is getting warmer?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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As part of a Pew Research Center poll, subjects were asked if there is solid evidence that the
earth is getting warmer. Among 1855 respondents, 406 said that there is no such evidence. Use
a 1% significance level to test the claim that less than 25% of the population believes that there
is not solid evidence that the earth is getting warmer.
State the null and alternative hypothesis
What is the test statistics?
What is the critical value?
What is the P-value?
What can you conclude?
Can a hypothesis test be used to "prove" that less than 25% of the population believe that
there is not solid evidence that the earth is getting warmer?
Transcribed Image Text:As part of a Pew Research Center poll, subjects were asked if there is solid evidence that the earth is getting warmer. Among 1855 respondents, 406 said that there is no such evidence. Use a 1% significance level to test the claim that less than 25% of the population believes that there is not solid evidence that the earth is getting warmer. State the null and alternative hypothesis What is the test statistics? What is the critical value? What is the P-value? What can you conclude? Can a hypothesis test be used to "prove" that less than 25% of the population believe that there is not solid evidence that the earth is getting warmer?
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