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A national poll taken in January 2014 found 462 adults among the 840 asked are pet owners. Answer the following questions based on a 96%

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A national poll taken in January 2014 found 462 adults among the 840 asked are pet owners. Answer the following questions based on a 96% confidence level. 1. Find the critical values. 2. What is the best guess for the proportion of American adults that are pet owners? 3. Find the confidence interval for the proportion of American adults that are pet owners. 4. How many adults should be sampled so that the margin of error is 2 percentage points

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