Question 136507: I am having problems trying to figure out can you help thanks.
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.
Crash Damage ($)
Goliath Varmint Weasel
1,600 1,290 1,090
760 1,400 2,100
880 1,390 1,830
1,950 1,850 1,250
1,220 950 1,920
Found 3 solutions by stanbon, Edwin McCravy, melissa182:
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated.Five test vehicles of each type were crashed, with the results shown below. Research question: Are the mean crash damages the same for these three vehicles? Crash1
Crash Damage ($)
Goliath Varmint Weasel
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
-------------------------
Ho: means are all the same
Ha: at least one of the means is different
ANOVA Test:
F= 0.93665
p-value: 0.4188
df= 2
Conclusion: Fail to reject Ho
The means are statistically the equal.
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Cheers,
Stan H.
Answer by Edwin McCravy(20055)  (Show Source):
Answer by melissa182(1) (Show Source):
You can put this solution on YOUR website! Using Excel, enter in your chart in 3 columns.
Use Excel Tools, Data Analysis and select ANOVA single factor.
Select your chart as the range, grouped by columns, alpha .05.
Calculate.
The chart shows that F= .93665 which is less than the critical value of F=3.885294, so we must fail to reject the null hypothesis.
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