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The American Heart Association is about to conduct an anti-smoking campaign and wants to know the...

The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 49 who smoke.

Step 2 of 2:

Suppose a sample of 482 Americans over 49 is drawn. Of these people, 391 don't smoke. Using the data, construct the90%confidence interval for the population proportion of Americans over 49 who smoke. Round your answers to three decimal places.

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