Solved: Crash Data The Insurance Institute for Highway Safety conducts experiments in

Chapter 15, Problem 10

(choose chapter or problem)

Crash Data The Insurance Institute for Highway Safety conducts experiments in which cars are crashed into a fixed barrier at 40 mph. In a 40-mph offset test, 40% of the total width of each vehicle strikes a barrier on the driver side. The barriers deformable face is made of aluminum honeycomb, which makes the forces in the test similar to those involved in a frontal offset crash between two vehicles of the same weight, each going just less than 40 mph. You are in the market to buy a new family car, and you want to know whether the distribution of head injury resulting from this offset crash is the same for large family cars, passenger vans, and midsize utility vehicles at the a = 0.01 level of significance. The following data were collected from the study. Large Family Cars Head Injury (hic) Passenger Vans Head Injury (hic) Midsize Utility Vehicles Head Injury (hic) Hyundai XG300 264 Toyota Sienna 148 Honda Pilot 225 Ford Taurus 134 Honda Odyssey 238 Toyota 4Runner 216 Buick LeSabre 409 Ford Freestar 340 Mitsubishi Endeavor 186 Chevrolet Impala 530 Mazda MPV 693 Nissan Murano 307 Chrysler 300 149 Chevrolet Uplander 550 Ford Explorer 353 Pontiac Grand Prix 627 Nissan Quest 470 Kia Sorento 411 Toyota Avalon 166 Kia Sedona 322 Chevy Trailblazer 397 Source: Insurance Institute for Highway Safety