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Solution: Suppose that we want to decide whether a difference exists in mean annual energy consumptions among the four U.S. regions, Northwest, Mideast,

Question: Suppose that we want to decide whether a difference exists in mean annual energy consumptions among the four U.S. regions, Northwest, Mideast, South and West. Using the data gathered by the Energy Information Administration, we obtain the following One-Way ANOVA results shown below. Using a $0.05$ significance level, test the claim that the four regions have the same mean energy consumption. Does one of the regions appear to have a different mean energy consumption? State null and alternative hypothesis F-test statistic and p-value before answering the question.

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