The Brandon Airport in Manitoba serves light aircraft. It has a single runway and one air traffic controller to land planes. It takes an airplane eight minutes to land and clear the runway (exponentially distributed). Planes arrive at the airport at the rate of five per hour (Poisson distributed). a. Determine the average number of planes that will stack up waiting to land. , (Round your answer to 2 decimal places, the tolerance is +/- 0.01.) b. Find the average time a plane must wait in line before it can land. min, (Round your answer to integer, the tolerance is +/- 1.) c. Calculate the average time it takes a plane to clear the runway once it has notified the airport that it is in the vicinity and wants to land. (Round your answer to 1 decimal place, the tolerance is +/- 1.) hr d. The Canadian Air Transport Security Authority (CATSA) has a rule that an air traffic controller can, on the average, land planes a maximum of 45 minutes out of every hour. There must be 15 minutes of idle time available to relieve the tension. Will this airport have to hire an extra air traffic controller?