In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated. five test vehicles of each type were crashed, with the results shown below. research question: are the mean crash damages the same for these three vehicles? goliath varmint weasel 1600 1290 1090 760 1400 2100 880 1390 1830 1950 1850 1250 1220 950 1920