How many tissues should the Kimberly Clark Corporation package of Kleenex contain? Researchers determined that 60 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: Suppose the test statistic does fall in the rejection region at = 0.05.Which of the following conclusion is correct?
A)At = 0.05, there is not sufficient evidence to conclude that the mean number of tissues used during a cold is 60 tissues.
B)At = 0.05, there is sufficient evidence to conclude that the mean number of tissues used during a cold is 60 tissues.
C)At = 0.05, there is insufficient evidence to conclude that the mean number of tissues used during a cold is not 60 tissues.
D)At = 0.10, there is sufficient evidence to conclude that the mean number of tissues used during a cold is not 60 tissues.

Question

How many tissues should the Kimberly Clark Corporation package of Kleenex contain? Researchers determined that 60 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:  Suppose the test statistic does fall in the rejection region at  = 0.05.Which of the following conclusion is correct?
A)At = 0.05, there is not sufficient evidence to conclude that the mean number of tissues used during a cold is 60 tissues. 
B)At = 0.05, there is sufficient evidence to conclude that the mean number of tissues used during a cold is 60 tissues. 
C)At = 0.05, there is insufficient evidence to conclude that the mean number of tissues used during a cold is not 60 tissues. 
D)At = 0.10, there is sufficient evidence to conclude that the mean number of tissues used during a cold is not 60 tissues.

Quizplus · Accepted Answer

Since the test statistic falls in the rejection region at a significance level of 0.05, we reject the null hypothesis that the mean number of tissues used during a cold is 60 tissues. However, we cannot conclude that the mean number is not 60, as we have not conducted a two-tailed test. Therefore, the correct conclusion is that there is not sufficient evidence to conclude that the mean number of tissues used during a cold is 60 tissues.

How Many Tissues Should the Kimberly Clark Corporation Package of Kleenex