It has long been stated that the mean temperature of humans is98.6F. ?However, two researchers currently involved in the subject thought that the mean temperature of humans is less than98.6F. They measured the temperatures of 148 healthy adults 1 to 4 times daily for 3? days, obtaining600 measurements. The sample data resulted in a sample mean of97.9F and a sample standard deviation of0.6degreesF.?(a)Using the classical? approach, judge whether the mean temperature of humans is less than98.6 degreesF at the?=0.010.01 level of significance.?(b)Approximate the? P-value.

It has long been stated that the mean temperature of humans is98.6F. ?However, two researchers currently involved in the subject thought that the mean temperature of humans is less than98.6F. They measured the temperatures of 148 healthy adults 1 to 4 times daily for 3? days, obtaining600 measurements. The sample data resulted in a sample mean of97.9F and a sample standard deviation of0.6degreesF.?(a)Using the classical? approach, judge whether the mean temperature of humans is less than98.6 degreesF at the?=0.010.01 level of significance.?(b)Approximate the? P-value.