Researchers Determined That 60 Tissues Is the Average Number of Tissues

Multiple Choice

Researchers determined that 60 tissues is the average number of tissues used during a cold. Suppose a random sample of 100 tissue users yielded the following data on the number of tissues used during a cold: = 52 and s = 22. Suppose the alternative we wanted to test is . Which of the following best describes the rejection region for = 0.05?

A) Rejectif t > 1.6604.
B) Rejectif t < -1.6604.
C) Rejectif t > 1.9842 or Z < -1.9842.
D) Rejectif t < -1.9842.