How many tissues should the Kimberly Clark Corporation package of Kleenex contain? Researchers determined that 75 tissues is the mean 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:  X ̅= 63, S = 22. Suppose you are interested in determining whether there is evidence that the mean number of tissues used during a cold is less than 75.    Referring to Scenario 3-1, what is your statistical conclusion if you conduct a lower-tail test at a 0.05 significance level?

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Scenario 3-1

How many tissues should the Kimberly Clark Corporation package of Kleenex contain? Researchers determined that 75 tissues is the mean 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:  X ̅= 63, S = 22. Suppose you are interested in determining whether there is evidence that the mean number of tissues used during a cold is less than 75. 

 

Referring to Scenario 3-1, what is your statistical conclusion if you conduct a lower-tail test at a 0.05 significance level?

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