Question 186197This question is from textbook doana and seward
: Can some please help thank you
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 ($)
Goliath Varmint Weasel
1,600 1,290 1,090
760 1,400 2,100
880 1,390 1,830
1,950 1,850 1,250
1,220 950 1,920
This question is from textbook doana and seward
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated five test vehicles of each type were crashed, with the results shown below. Research question: Are the mean crash damages the same for these three vehicles? Crash1
Crash Damage ($)
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.
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