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Suppose we obtained data on vein size after application of a nitroglycerin ointment in a sample of 40 patients.The mean vein size is found to

Suppose we obtained data on vein size after application of a nitroglycerin ointment in a sample of 40 patients.The mean vein size is found to be 7.1 mm with an SD of 1.1.Using a t distribution table, what are the confidence limits for a 95% confidence interval?For a 99% confidence interval?

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