(A)Compute a 95% confidence interval for the true proportion of people who favor Coke.Do the results of this poll convince you that a majority of people favors Coke?
(B)Suppose 2,000 (not 400)people were polled and 53% favored Coke.Would you now be convinced that a majority of people favor Coke? Why might your answer be different than in (A)?
(C)How many people would have to be surveyed to be 95% confident that you can estimate the fraction of people who favor Coca-Cola within 1%?

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The Answer of (A)Compute a 95% confidence interval for the true proportion of people who favor Coke.Do the results of this poll convince you that a majority of people favors Coke?
(B)Suppose 2,000 (not 400)people were polled and 53% favored Coke.Would you now be convinced that a majority of people favor Coke? Why might your answer be different than in (A)?
(C)How many people would have to be surveyed to be 95% confident that you can estimate the fraction of people who favor Coca-Cola within 1%?

(A)Compute a 95% Confidence Interval for the True Proportion of People