Question 186197
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? Crash1
Crash Damage ($)
Goliath Varmint Weasel
1600,...1290.... 1,090
760.... 1400.... 2,100 
880.... 1390.... 1,830
1,950.. 1850.... 1,250
1,220... 950.... 1,920
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Ho: The means are the same
Ha: At least one of the means is not the same as the others
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I ran an ANOVA Test against the three sets of data and got the
following results:
test statistic: F = 0.9367
p-value: 0.4188
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Conclusion: since the p-value is less than 5%, reject Ho.
Not all the means are equal
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Cheers,
Stan H.