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A random sample of males who finished the New York Marathon is partitioned into three categories with ages of 21-29, 30-39, and 40 or over. The times (in seconds) are obtained from a random sample of those who finished. The analysis of varinace results obtained from Excel is shown below. Is there sufficient evidence to support the claim that men in the different age categories have different mean times at a 0.05 significance level?

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