Crash Test Results for Mini Cars The Insurance Institute for Highway Safety (IIHS)
Chapter 9, Problem 37(choose chapter or problem)
Crash Test Results for Mini Cars The Insurance Institute for Highway Safety (IIHS) routinely conducts crash tests on vehicles to determine the cost of repairs. The following data represent the vehicle repair costs for 2009-model mini- and micro-cars resulting from front-full and rear-full crash tests at 6 miles per hour. Treat these data as a simple random sample of 14 low-impact crashes. Construct and interpret a 90% confidence interval for the mean repair cost of a low-impact bumper crash on a mini- or micro-car. Use the normal probability plot and boxplot to assist in verifying the model requirements. Vehicle Front Full Rear Full Smart Fortwo $1480 $631 Chevrolet Aveo $1071 $1370 Mini Cooper $2291 $929 Toyota Yaris $1688 $3345 Honda Fit $1124 $3648 Hyundai Accent $3476 $2057 Kia Rio $3701 $3148 Source: IIHS News Release, June 2009 Cost ($ in hundreds) 5 10 15 20 25 35
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