Two studies were completed in Florida. One study in northern Florida involved 2,000 patients; 64% of them experienced flulike symptoms during the month of December. The other study, in southern Florida, involved 3,000 patients; 54% of them experienced flulike symptoms during the same month. Which study has the smallest margin of error for a 95% confidence interval?
The northern Florida study with a margin of error of 1.8%.
The southern Florida study with a margin of error of 1.8%.
The northern Florida study with a margin of error of 2.1%.
The southern Florida study with a margin of error of 2.1%.

Question

katherine · Answer

The southern Florida study with a margin of error of 1.8%. (B)