#12

Question # 12 You wish to estimate the proportion of all voters in California who plan to vote in favor of a certain ballot measure. Obtain a sample size that will ensure a margin of error of at most 0.025 for a 95% confidence interval. Assume that it is reasonable to presume that of the voters sampled, the proportion in favor of the measure will be between 0.66 and 0.79. A) 1380 B) 1020 C) 972 D) 1537