The lingering economic crisis has cost America trillions of dollars in lost wealth and also has levied
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The lingering economic crisis has cost America trillions of dollars in lost wealth and also has levied a heavy toll on the national psyche (The Wall Street Journal, December 21, 2009).
According to a recent poll, just 33% of those surveyed said America was headed in the right direction. Suppose this poll was based on a sample of 1,000 people. Does the sample evidence suggest that the proportion of Americans who feel that America is headed in the right direction is below 35%? Use a 5% level of significance for the analysis. What if the sample size was 2,000?
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H 0 p 035 H A p 035 Case 1 n1000 The pvalue P Z 133 00918 ...View the full answer
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