- 搜标题
- 搜题干
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单项选择题
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:
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 reject H0.
B． At = 0.05, we do not reject H0.
C．At = 0.05, we accept H0.
D．At = 0.10, we do not reject H0.
= 0.05, we reject H0.B． At
= 0.05, we do not reject H0.C．At
= 0.05, we accept H0.D．At
= 0.10, we do not reject H0.
