Pollutants in auto exhausts, continued. The level of nitrogen oxides (NOX)in the exhaust
Chapter 0, Problem 11.39(choose chapter or problem)
Pollutants in auto exhausts, continued. The level of nitrogen oxides (NOX)in the exhaust of cars of a particular model varies Normally with mean 0.2 g/miand standard deviation 0.05 g/mi. A company has 25 cars of this model in its fleet.What is the level L such that the probability that the average NOX level x forthe fleet is greater than L is only 0.01? (Hint: This requires a backward Normalcalculation. See page 81 in Chapter 3 if you need to review.)
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