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 50 healthy adults 1 to 4 times daily for 3days, obtaining 225 measurements. The sample data resulted in a sample mean of 98.3F and a sample standard deviation of 1.1F. 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.

State the hypotheses.

H0:

sigma

mu

p

p

equals

=

less than

<

greater than

>

not equals

98.6F

H1:

sigma

mu

p

p

less than

<

not equals

equals

=

greater than

>

98.6F

Find the test statistic.

t0=

nothing

(Round to two decimal places asneeded.)

TheP-value is

nothing

.

(Round to three decimal places asneeded.)

What can beconcluded?

A.

Reject H0 since theP-value is not less than the significance level.

B.

Do not reject H0 since theP-value is not less than the significance level.

C.

Do not reject H0 since theP-value is less than the significance level.