Question

# In a bumper test, three types of autos were deliberately crashed into a barrier at 5...

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 1,660 1,270 1,040 790 1,490 2,110 880 1,380 1,800 1,980 1,810 1,280 1,210 990 1,920

Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place, and other answers to 2 decimal places.)

 Group Mean n Std. Dev Variance Goliath Varmint Weasel Total
 One-Factor ANOVA Source SS df MS F p-value Treatment Error Total

Calculate the value of Hcalc. (Round your answer to 2 decimal places.)

H
calc ??

using data >data>data analysis>one way ANOVA

we have

 Anova: Single Factor SUMMARY Groups Count Sum Average Variance Goliath 5 6520 1304 259130 Varmint 5 6940 1388 90220 Weasel 5 8150 1630 203500 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 286493.3 2 143246.7 0.777318 0.48146 3.885294 Within Groups 2211400 12 184283.3 Total 2497893 14
 Group Mean n Std. Dev Variance Goliath 1304 5 509.0481 259130 Varmint 1388 5 300.3664 90220 Weasel 1630 5 451.1097 203500 Total 4322 15 1260.5242 552850
 Source of Variation SS df MS F P-value Treatment 286493.3 2 143246.7 0.777318 0.48146 Error 2211400 12 184283.3 Total 2497893 14

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