The Genetics and IVF Institute conducted a clinical trial of the YSORT technique designed to raise the probability of conceiving a boy. As of this writing, 152 babies were born to parents using the YSORT method, and 127 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 99% confidence interval estimate of the percentage 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?