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Chapter 15

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

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

(Enter your answer rounded to three decimal places. 


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