How Many Tissues Should the Kimberly Clark Corporation Package of Kleenex

question 86

Multiple Choice

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 we 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.

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