A 90% Confidence Interval for the Mean Percentage of Airline

Multiple Choice

A 90% confidence interval for the mean percentage of airline reservations being canceled on the day of the flight is (1.3%, 5%) . What is the point estimator of the mean percentage of reservations that are canceled on the day of the flight?

A) 3.15%
B) 1.85%
C) 2.50%
D) 3.7%