The level of nitrogen oxides (NOX) and nonmethane organic gas (NMOG) in the exhaust over the useful life (150,000 miles150,000 miles of driving) of cars of a particular model varies Normally with mean 80 mg/mi80 mg/mi and standard deviation 6 mg/mi.6 mg/mi. A company has 1616 cars of this model in its fleet.

Using Table A, find the level L such that the probability that the average NOX+NMOGNOX+NMOG level x for the fleet is greater than L is only 0.05.only 0.05.

Give your answer to three decimal places.