Based on FAA estimates the average age of the fleets of the 10 largest U.S....

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Calculus

Based on FAA estimates the average age of the fleets of the 10 largest U.S. commercial passenger carriers is 13.4 years with astandard deviation of 1.7 years. Suppose that 40 airplanes were randomly selected from the fleets of these 10 carriers andwere inspected for cracks in these airplanes that are considered too large for flying. What is the probability that the averageage of these 40 airplanes is at least 14 years old? Round your answer to 4 decimal places. Remember to round your z-value totwo decimal places.0.01290.26540.35890.4731None of the above

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Based on FAA estimates the average age of the fleets of the 10 largest U.S. commercial passenger carriers is 13.4 years with astandard deviation of 1.7 years. Suppose that 40 airplanes were randomly selected from the fleets of these 10 carriers andwere inspected for cracks in these airplanes that are considered too large for flying. What is the probability that the averageage of these 40 airplanes is at least 14 years old? Round your answer to 4 decimal places. Remember to round your z-value totwo decimal places.0.01290.26540.35890.4731None of the above