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A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 688 babies were born, and 344 of them were girls. Use the sampl
data to construct a 99% confidence interval estimate of the percentage of girls born. Based on the result, does the method appear to be effective?
<p<(Round to three decimal places as needed.)
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Transcribed Image Text

A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 688 babies were born, and 344 of them were girls. Use the sampl data to construct a 99% confidence interval estimate of the percentage of girls born. Based on the result, does the method appear to be effective? <p<(Round to three decimal places as needed.)