Help with this question please!

Part A

Find a 90% confidence interval of the proportion of flight reservations that are canceled on the day of flight. O (37.309, 58.691) O (0.09, 0.15) O (0.08, 0.16) O (0.04, 0.20)Interpret the confidence interval in the context. O With 90% confidence, the flight reservations canceled on the day of flight out of 400 sampled is between the lower limit and the upper limit. O We are 90% confident that the proportion of flight reservations canceled on the day of flight is between the lower limit and upper limit. O We are 90% confident that the number of flight reservations canceled on the day of flight is between the lower limit and upper limit. O There is 90% probability that the proportion of flight reservations canceled on the day of flight is between the lower limit and upper limit.Which two ways will both make the confidence interval narrower? O A lower confidence level and a larger sample size. O A higher confidence level and a smaller sample size. O A higher confidence level and a larger sample size. O A lower confidence level and a smaller sample size.D Question 4 0.5 pts An airline wants to know what percent of flight reservations are canceled on the day of the flight. A sample of 400 randomly selected flight reservations was chosen, and 48 of them were canceled on the day of the flight. Find a point estimate of the proportion of flight reservations that are canceled on the day of flight. O 48 O 400 O 0.12 O 0.48