In a 1868 paper, German physician Carl Wunderlich reported based on over a million body temperature readings that the mean body temperature for healthy adults is 98.6 F. However, it is now commonly believed that the mean body temperature of a healthy adult is less than what was reported in that paper. To test this hypothesis a researcher measures the following body temperatures from a random sample of healthy adults. 98.1, 98.7, 98.8, 98.4, 97.6, 98.4, 98.5, 97.8

(a)	Find the value of the test statistic.

(b)	Find the 1% critical value.

(c)	Work through Example 11 (which starts on p. 32 of the lab manual) on Minitab, and then use Minitab to find thep-value for the relevant hypothesis test.

(d)	Since the sample size is less than 30, the above analysis requires that the population follows a normal distribuiton. What method could be used to check this assumption?

for D the options are:

(A)Draw a normal probability plot, and see if the points fall close to a straight line.

(B)Draw a normal probability plot, and see if the points are bell-shaped (like the normal curve).

(C)Check to see if thep-value in(c)above is less than the value.

(D)check to see if the answer in(a)is less than the answer in(b).

(E)Check to see if thep-value in(c)above is greater than .10.

(F)One-samplet-test for a population mean.

(G)One-samplez-test for a population mean.

(H)check to see if the answer in(a)is greater than or equal to the answer in(b).