We wish to estimate what proportion of adult residents in a certain county are parents. Out of 300 adult residents sampled, 195 had kids. Based on this, construct a 85% confidence interval for the...

We wish to estimate what proportion of adult residents in a certain county are parents. Out of 300 adult residents sampled, 195 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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p =  ±±