Head Injuries Large Family Cars Passenger Vans Midsize Utility Vehicles (SUVs) 261 148 227 135 237 215 411 343 186 533 6
Posted: Wed May 11, 2022 11:09 am
- Head Injuries Large Family Cars Passenger Vans Midsize Utility Vehicles Suvs 261 148 227 135 237 215 411 343 186 533 6 1 (42.51 KiB) Viewed 29 times
- Head Injuries Large Family Cars Passenger Vans Midsize Utility Vehicles Suvs 261 148 227 135 237 215 411 343 186 533 6 2 (57.13 KiB) Viewed 29 times
A highway safety institution conducts experiments in which cars are crashed into a fixed barrier at 40 mph. In the institute's 40-mph offset test, 40% of the total width of each vehicle strikes a barrier on the driver's side. The barrier's 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 family car and you want to know if the mean head injury resulting from this offset crash is the same for large family cars, passenger vans, and midsize utility vehicles (SUVs). The data in the accompanying table were collected from the institute's study. Complete parts (a) through (d) below 3 Click the icon to view the data table (e) Test the hypothesis that the mean head injury for each vehicle type is the same at the a= 0.01 level of significance. Use technology to find the Ftest statistic for this data set Fo=(Round to three decimal places as needed.) Determine the P-value and state the appropriate conclusion below. Since the P-value is there is evidence to reject the null hypothesis. Thus, we conclude that the means are different at the a= 0.01 level of significance (Round to four decimal places as needed) (d) Draw boxplots of the three vehicle types to support the results obtained in part (c). Choose the correct graph below. ОА ОВ. Q Q OC SUV Vans SUV Vans Cars SUV Cars Cars Vans 100 so 700 100 300 700 300 360 Hes 700 500 nun