For a poll 43 of 21944 people polled answered yes to the giv

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 would we need a confidence interval? That is, what additional information does the confidence interval provide?

Solution

Answer (C). Information about the accuracy of the estimate

Given data is population data (not a sample data). No need to more information for estimate the population percentage. Given 43% is the exact percentage of the population.