Question

Refer to Example 7.8.
In example
The consumer testing agency was interested in evaluating whether there was a difference in the mean percentage increases in mpg of the three additives. In Example 7.9, we showed that the data did not appear to have a normal distribution.
a. Apply the natural logarithm transformation to the data. Do the conditions for applying the AOV F test appear to hold for the transformed data?
b. Test for a difference in the means of the three additives using α = .05.


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  • CreatedNovember 21, 2015
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