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A paper that examined the effect of a supplement on running speed in 10 athletes reported that running speed improved an average of 2 second/mile

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A paper that examined the effect of a supplement on running speed in 10 athletes reported that running speed improved an average of 2 second/mile with a 90% confidence interval for the mean of 0.1 to 3.9 seconds/mile. What is the two-sided p-value for the corresponding paired ttest? There are 9 degrees of freedom; thus, the T-value for a 90% confidence interval is 1.83

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