Confidence interval for population proportion of travelers

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Reference no: EM131405199

An airline has surveyed a simple random sample of air travelers to find out whether they would be interested in paying a higher fare in order to have access to e-mail during their flight. Of the 400 travelers surveyed, 80 said e-mail access would be worth a slight extra cost.

Construct a 95% confidence interval for the population proportion of air travelers who are in favor of the airline's e-mail idea.

Reference no: EM131405199

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