An airline,in response to passenger concern,conducts realistic tests to determine the time needed to evacuate a Boeing 737.Average evacuation time in the past has been 100 seconds with a standard deviation of 15 seconds.The FFA requires tests that show a planeload of passengers can be evacuated in 92 seconds.If the airline conducts a sample of 30 tests,what is the probability that the average evacuation time will be ninety-two seconds or less?

Question

Quizplus · Accepted Answer

The Answer of An airline,in response to passenger concern,conducts realistic tests to determine the time needed to evacuate a Boeing 737.Average evacuation time in the past has been 100 seconds with a standard deviation of 15 seconds.The FFA requires tests that show a planeload of passengers can be evacuated in 92 seconds.If the airline conducts a sample of 30 tests,what is the probability that the average evacuation time will be ninety-two seconds or less?

An Airline,in Response to Passenger Concern,conducts Realistic Tests to Determine