Question 170361This question is from textbook Applied Statistics in Business and Economics
: I need some assistance with this question, I don't think it the process to answer it as I am making it to be so I could use an answer to compare to. Also, my computer with Excel to use the statistics part of the program is broken so I am doing everything long hand. Thank you for your help.
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. Five test vehichles of each type were crashed, with the results shown below. Research question: Are the mean crash damages the same for these three vehicles?
Goliath 1600, 760, 880, 1950, 1220
Varmint 1290, 1400, 1390, 1850, 950
Weasel 1090, 2100, 1830, 1250, 1920
I calucated the mean for each car type, each mean is different, but I am not sure if the question is really asking for more than this. For the Goliath I got a mean of 1062, Varmint 1376, Weasel 1638. Thanks for your help.
This question is from textbook Applied Statistics in Business and Economics
Answer by Earlsdon(6294)   (Show Source):
You can put this solution on YOUR website! Well, I got a different number for the mean on the Goliath group:
Goliath mean = 1282.
On the other two groups, my answer was the same as yours.
But the question seems to be "Are the means the same for each group" and the answer is clearly, no they are not!
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