Two studies were completed in California. One study in northern California involved 1,000 patients; 74% of them experienced flulike symptoms during the month of December. The other study, in southern California, involved 500 patients; 34% of them experienced flulike symptoms during the same month. Which study has the smallest margin of error for a 98% confidence interval?

The northern California study with a margin of error of 3.2%.

The southern California study with a margin of error of 3.2%.

The northern California study with a margin of error of 4.9%.

The southern California study with a margin of error of 4.9%.

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17 October, 05:57

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Willie Keith · Answer 1

The northern California study with a margin of error of 3.2%.