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7. We wish to estimate what percent of adult residents in a certain county are parents. Out of 100 adult residents sampled, 53 had kids.

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We wish to estimate what percent of adult residents in a certain county are parents. Out of 100 adult residents sampled, 53 had kids. Based on this, construct a 90% confidence interval for the proportion p of adult residents who are parents in this county. Give your answers as decimals rounded to three places.

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