For a poll, 43% of 21,944 people polled answered “yes” to the given question. Given that 43% is the best estimate of the population percentage, why would we need a confidence interval? That is, what additional information does the confidence interval provide? Choose the correct answer below. A. Information about the standard deviation of the population. B. Information about the mean of the population. C. Information about the accuracy of the estimate. D. Information about the mean of the sample.
Image text
For a poll, 43% of 21,944 people polled answered “yes” to the given question. Given that 43% is the best estimate of the population percentage, why would we need a confidence interval? That is, what additional information does the confidence interval provide? Choose the correct answer below. A. Information about the standard deviation of the population. B. Information about the mean of the population. C. Information about the accuracy of the estimate. D. Information about the mean of the sample.