Essay
Preliminary data analyses indicate that it is reasonable to consider the assumptions for one-way ANOVA satisfied.Perform the required hypothesis test using the critical-value approach.
-Random samples of four different models of cars were selected and the gas mileage of each car was measured. The results are shown below. 
Test the claim that the four different models have the same population mean. Use a significance level of 0.05.
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Not all the means are equal. ...View Answer
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Correct Answer:
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Not all the means are equal. ...View Answer
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