A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study babies were​ born, and of them were girls. Use the sample data to construct a ​% confidence interval estimate of the percentage of girls born. Based on the​ result, does the method appear to be​ effective?
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Part 1

0.857 p

0.943 ​(Round to three decimal places as​ needed.)
Part 2
Does the method appear to be​ effective?
​, the proportion of girls significantly different from 0.5.
​, the proportion of girls significantly different from 0.5.