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A research company recently surveyed 6960 adults in one country about reform of the country's senate. Of these, 38% answered "Yes" to the question
A research company recently surveyed 6960 adults in one country about reform of the country's senate. Of these, 38% answered "Yes" to the question "Do you support abolishing the senate?". What is the margin of error for a 90% confidence interval for the population proportion based on this sample?