Question 7 The Environmental Protection agency requires that the exhaust of each model of motor vehicle Type numbers in

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Question 7 The Environmental Protection Agency Requires That The Exhaust Of Each Model Of Motor Vehicle Type Numbers In 1 (52.4 KiB) Viewed 31 times

Question 7 The Environmental Protection agency requires that the exhaust of each model of motor vehicle Type numbers in the boxes. be tested for the level of several pollutants. The level of oxides of nitrogen (NOX) in the exhaust Part 1: 5 points Part 2: 5 points 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 35th percentile for NOX exhaust, rounded to four decimal places? (b) Find the interquartile range for the distribution of NOX levels in the exhaust of trucks rounded to four decimal places. Question 8 Part 1: 5 points A study was made of seat belt use among children who were involved in car crashes that caused Type numbers in the boxes. them to be hospitalized. It was found that children not wearing any restraints had hospital stays with a mean of 7.37 days and a standard deviation of 2.60 days with an approximately normal distribution. Part 2:5 points (a) Find the probability that their hospital stay is from 5 to 6 days, rounded to five decimal places. 10 points (b) Find the probability that their hospital stay is greater than 6 days, rounded to five decimal places.