Question

A clinical trial was conducted using a new method designed to increase the probability of conceiving a girl. As of this​ writing, 944 babies were born to parents using the new​ method, and 875 of them were girls. Use a 0.01 significance level to test the claim that the new method is effective in increasing the likelihood that a baby will be a girl. Identify the null​hypothesis, alternative​ hypothesis, test​ statistic, P-value, conclusion about the null​ hypothesis, and final conclusion that addresses the original claim. Use the​ P-value method and the normal distribution as an approximation to the binomial distribution.

1. What is the test statistic? z=_____

2. What is the P-value? P-value=______

Answer 1