3. Suppose that I survey 500 randomly selected US voters about whether or not they think Donald Trump should have been impeached, and 276 of the 500 respondents say "yes, he should have." a. Test the hypothesis that greater than 50% of US voters believe that Trump should have been impeached with an alpha of .05. b. Calculate a 95% confidence interval for the share of US voters who believe that President Trump should have been impeached. HINT: Let x=1 if a respondent thinks he should have been impeached and 0 otherwise. Then the sample mean of this variable equals the fraction of respondents who think he should have been impeached (276/500). The sample standard deviation is

3. Suppose that I survey 500 randomly selected US voters about whether or not they think Donald Trump should have been impeached, and 276 of the 500 respondents say "yes, he should have." a. Test the hypothesis that greater than 50% of US voters believe that Trump should have been impeached with an alpha of .05. b. Calculate a 95% confidence interval for the share of US voters who believe that President Trump should have been impeached. HINT: Let x=1 if a respondent thinks he should have been impeached and 0 otherwise. Then the sample mean of this variable equals the fraction of respondents who think he should have been impeached (276/500). The sample standard deviation is

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 58E: What is meant by the sample space of an experiment?

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