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We wish to estimate what proportion of adult residents in a certain county are parents. Out of 400 adult residents sampled, 356 had kids. Based

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We wish to estimate what proportion of adult residents in a certain county are parents. Out of 400 adult residents sampled, 356 had kids. Based on this, construct a 85% confidence interval for the proportion p of adult residents who are parents in this county. Express your answer in tri-inequality form. Give your answers as decimals, to three places.

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