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: Give the null and alternative hypotheses to determine if the number of tissues used during a cold is less than 60.

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:  Give the null and alternative hypotheses to determine if the number of tissues used during a cold is less than 60.

Quizplus · Accepted Answer

The null hypothesis is that the mean number of tissues used during a cold is equal to 60 (H0: µ = 60). The alternative hypothesis is that the mean number of tissues used during a cold is less than 60 (Ha: µ < 60). The alternative hypothesis is one-tailed because we are interested in only one direction of difference (less than 60). Only option B has the alternative hypothesis written correctly as Ha: µ < 60. The null hypothesis would be that the mean number of tissues used during a cold is equal to 60, while the alternative hypothesis would be that the mean number of tissues used during a cold is less than 60. Therefore, the best choice is B as it states the alternative hypothesis as "less than 60".

How Many Tissues Should the Kimberly Clark Corporation Package of Kleenex