Political Corruption A questionnaire is designed to investigate attitudes about political corruption in government. The experimenter would like to survey two different groups—Republicans and Democrats—and compare the responses to various “yes/no” questions for the two groups. The experimenter requires that the sampling error for the difference in the proportion of “yes” responses for the two groups is no more than ±3 percentage points. If the two samples are the same size, how large should the samples be?
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