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A paper reported a (1-α) confidence interval for the proportion of voters is (0.561, 0.599) based...

A paper reported a (1-α) confidence interval for the proportion of voters is (0.561, 0.599) based on a sample of 2434 people. However, the paper omitted the value of α. What is the value of α? Please report your answer up to 3 decimal places.

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