Based on FAA estimates the population mean age of the fleets of the largest U

Based on FAA estimates the population mean age of the fleets of the largest U.S. commercial passenger carriers is 13.4 years with a standard deviation of 1.7 years. Suppose that 40 airplanes were randomly selected from the fleets of these carriers and were inspected for cracks in these airplanes that are considered too large for flying. What is the probability that the sample mean age of these 40 airplanes is at least 14 years old? Round your answer to 4 decimal places. Remember to round your z-value to two decimal places.

Select one:

A. 0.0129

B. 0.2654

C. 0.3589

D. 0.4731

E. None of the above