Q1: A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 360 babies were born, and 306 of them were girls. Use the sample data to construct a 99% confidence interval estimate of the percentage of girls born. Based on the result, does the method appear to be effective?

Q2:

In a study of the accuracy of fast food drive-through orders, Restaurant A had 280 accurate orders and 72 that were not accurate

.a. Construct a 95% confidence interval estimate of the percentage of orders that are not accurate.

b. Compare the results from part (a) to this95% confidence interval for the percentage of orders that are not accurate at Restaurant B: 0.184