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The director of research and development is testing a new drug.
She wants to know if there is evidence at the 0.02 level that the
drug stays in the system for more than 374 minutes. For a sample of
80 patients, the mean time the drug stayed in the system was 377
minutes. Assume the population standard deviation is 19 . Find the
value of the test statistic. Round your answer to two decimal
places.
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