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show all work 4. The Genetics & IVF Institute conducted a clinical trial of the YSORT method designed to increase the probability of conceiving a

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4. The Genetics & IVF Institute conducted a clinical trial of the YSORT method designed to increase the probability of conceiving a boy. As of this writing, 291 babies were born to parents using the YSORT method, and 239 of them were boys. a. What is the best point estimate of the population proportion of boys born to parents using the YSORT method? b. Use the sample data to construct a 97% confidence interval estimate of the proportion of boys born to parents using the YSORT method. c. Based on the results, does the YSORT method appear to be effective? Why or why not

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