It has long been stated that the mean temperature of humans is 98.6F. However, two researchers currently involved in the subject thought that the mean temperature of humans is less than 98.6F. They measured the temperatures of 61 healthy adults 1 to 4 times daily for 3days, obtaining 275 measurements. The sample data resulted in a sample mean of 98.4F and a sample standard deviation of 1F. Use theP-value approach to conduct a hypothesis test to judge whether the mean temperature of humans is less than 98.6F at the =0.01 level of significance.

H0: = 98.6F

H1: = < 98.6F

Find the test statistic.

a) t0=

(Round to two decimal places asneeded.)

b) The P-value is =

(Round to two decimal places asneeded.)

c) Reject or do not reject H0: ?