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: = 52, S = 22.Suppose the alternative you wanted to test was H₁: μ 1.6604. B)Reject H₀ if t 1.9842 or Z

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: = 52, S = 22.Suppose the alternative you wanted to test was H₁: μ < 60.State the correct rejection region for α = 0.05. A)Reject H₀ if t > 1.6604. B)Reject H₀ if t < -1.6604. C)Reject H₀ if t > 1.9842 or Z < -1.9842. D)Reject H₀ if t < -1.9842.

Quizplus · Accepted Answer

Since we are testing whether the population mean is less than 60, this is a one-tailed test. Using a t-test with a sample size of 100 and a significance level of 0.05, the rejection region for the null hypothesis (μ = 60) is t < -1.6604 or t > 1.6604. Since our alternative hypothesis states that μ < 60, we only need to consider the left tail of the distribution. Therefore, we reject the null hypothesis if t < -1.6604, which is the correct rejection region.

How Many Tissues Should the Kimberly Clark Corporation Package of Kleenex