# Confidence interval for the true population proportion

A citizen's group is interested in the portion of the population that opposes the expansion at O'Hare airport. In a survey of 1,440 randomly selected people, 1098 people opposed the expansion. Construct a 95% confidence interval for the true population proportion.

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#### Solution Summary

A citizen's group is interested in the portion of the population that opposes the expansion at O'Hare airport. In a survey of 1,440 randomly selected people, 1098 people opposed the expansion. Construct a 95% confidence interval for the true population proportion.

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