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Help A running coach wanted to see whether runners run at a different speed after eating spaghetti the night before a race. For a 5-km

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A running coach wanted to see whether runners run at a different speed after eating spaghetti the night before a race. For a 5-km race, two samples were chosen: 6 runners who had a regular dinner the night before and 8 runners who had a spaghetti dinner the night before. Their results (in seconds) are in the table below. At a = 0.05, assuming unequal population variances, and using the Welch-Satterthwaite (i.e., exact) equation to calculate the degrees of freedom, do the data support the alternative hypothesis that runners do indeed run at a different speed after eating spaghetti? Regular Spaghetti Dinner Dinner Sample size 6 8 Sample mean 1,311 1,208 Sample standard 456 731 deviation O Inconclusive O Reject Null Hypothesis O Failed to Reject Null Hypothesis

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