Question: A random sample of 857 births in state include 425 boys. construct a 95% confidence interval estimate of the proportion of the boys in all

A random sample of 857 births in state include 425 boys. construct a 95% confidence interval estimate of the proportion of the boys in all births. it is believed that among all births the proportion of the boys is 0.512. do these sample results provide strong evidence against that belief?

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