- The Environmental Protection Agency Requires That The Exhaust Of Each Model Of Motor Vehicle Type Numbers In The Box Be 1 (103.98 KiB) Viewed 17 times
The Environmental Protection agency requires that the exhaust of each model of motor vehicle Type numbers in the box be tested for the level of several pollutants. The level of oxides of nitrogen (NOX) in the exhaust of one light truck model was found to vary among individually trucks according to a Normal distribution with mean 1.45 grams per mile driven and standard deviation 0.40 grams per mile. 10 points (a) What is the 90th percentile for NOX exhaust, rounded to four decimal places? 1.9628 Part 1:5 points Part 2: 5 points (b) Find the interquartile range for the distribution of NOX levels in the exhaust of trucks rounded to four decimal places. 1.45