A psychologist obtains a random sample of 20 mothers in the first trimester of their pregnancy. The mothers are asked to play Mozart in the house at least 30 minutes each day until they give birth. After 5 years, the child is administered an IQ test. It is known that IQs are normally distributed with a mean of 100. If the IQs of the 20 children in the study result in a sample mean of 104.6 and sample standard deviation of 15.9, is there evidence that the children have higher IQs? Use the a = 0.05 level of significance. Calculate the test statistic. Test statistic =O (Round to two decimal places as needed.) Calculate the P-value. P-value = (Round to three decimal places as needed.) State the conclusion for the test. Choose the correct answer below. O A. Do not reject Ho. There is sufficient evidence at the a = 0.05 level significance conclude that mothers who listen to Mozart have children with lower IQs. O B. Reject Ho. There is sufficient evidence at the a = 0.05 level significance to conclude that mothers who listen to Mozart have children with higher IQs. OC. Do not reject Ho. There is not sufficient evidence at the a= 0.05 level of significance to conclude that mothers who listen to Mozart have children with higher IQs. O D. Reject Ho- There not sufficient evidence at the a = 0.05 level of significance to conclude that mothers who listen to Mozart have children with lower IQs.