How many Kleenex should the Kimberly Clark Corporation package of tissues contain? Researchers determined that 60 tissues is the average number of tissues used during a cold. Suppose a random sample of 100 Kleenex users yielded the following data on the number of tissues used during a cold:= 52, s = 22. Suppose the test statistic does fall in the rejection region at= 0.05. Which of the following decisions is correct?
A、At= 0.05, we do not reject H0.
B、At= 0.05, we reject H0.
C、At= 0.05, we accept H0.
D、At= 0.10, we do not reject H0.