Question
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.
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 ($)GoliathVarmintWeasel1,6001,2901,0907601,4002,1008801,3901,8301,9501,8501,2501,2209501,920
Click here for the Excel Data File
Fill in the missing data.(Round yourp-value to 4 decimal places, mean values to 1 decimal place, and other answers to 2 decimal places.)
GroupMeannStd. DevVarianceGoliathVarmintWeaselTotal
One-Factor ANOVASourceSSdfMSFp-valueTreatmentErrorTotal
Based on the given hypotheses, choose the right option.
H0:1=2=3
H1: Not all the means are equal
= .05
multiple choice 1
- Reject the null hypothesis ifp-value < 0.05
- Reject the null hypothesis ifp-value > 0.05
On the basis of the above findings, we cannot reject the null hypothesis.
True
Based on the given hypotheses, choose the right option.
H0:21=22=23
H1: Not all the variances are equal
= .05
Reject the null hypothesis ifH> 15.5
Calculate the value ofHcalc.(Round your answer to 2 decimal places.)
Hcalc
On the basis of the above-determinedHcalc, we reject the null hypothesis.
False
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