August Wunderlich said that the mean temperature of humans is 98.6°F. Researchers Philip Mackowiak, Steven Wasserman, and Myron Levine thought that the mean temperature of humans is less than 98.6°F. They measured the temperature of 148 healthy adults 1 to 4 times daily for 3 days, obtaining 700 measurements. The sample data resulted in a sample mean of 98.2°F and a sample standard deviation of 0.7°F. Test whether the mean temperature of humans is less than 98.6°F at the ? = 0.01 level of signi?cance.
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