To Test the Mileage Efficiency of Three New Car Models,random

question 134

Multiple Choice

To test the mileage efficiency of three new car models,random samples of various sample sizes were selected from each of the three cars and the mpg data obtained are shown below. Based on the sample date,one can conclude that

• A)all three car models have the same mean mpg.
• B)at least two car models have different mpgs.
• C)Model C has a higher mpg than Model A.
• D)None of the above.

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