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One way ANOVA to test the differences among the means.

In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Research problem: Are mean crash damages the same for these three vehicles? Crash1

Crash Damage ($)

Goliath

Varmint

Weasel

1,600

1,290

1,090

760

1,400

2,100

880

1,390

1,830

1,950

1,850

1,250

1,220

950

1,920

 

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