How many tissues should the Kimberly Clark Corporation package of Kleenex 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: $\bar { X }$ = 52,s = 22.
- Suppose the alternative we wanted to test was H₁: $\mu$ < 60.State the correct rejection region for $\alpha$ = 0.05.

Question

How many tissues should the Kimberly Clark Corporation package of Kleenex 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:

\bar { X }

= 52,s = 22.
- Suppose the alternative we wanted to test was H₁:

\mu

< 60.State the correct rejection region for

\alpha

= 0.05.

Quizplus · Accepted Answer

For a one-tailed test with $\alpha = 0.05$ and degrees of freedom $df = n - 1 = 99$, the critical value for t is approximately -1.6604. Since the alternative hypothesis is $\mu < 60$, we reject the null hypothesis if the test statistic $t$ is less than this critical value.

How Many Tissues Should the Kimberly Clark Corporation Package of Kleenex