Researchers Determined That 60 Kleenex Tissues Is the Average Number

question 20

Multiple Choice

Researchers determined that 60 Kleenex 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: = 52 and s = 22. Suppose the alternative we wanted to test was . The correct rejection region for = 0.05 is

• A) rejectif t > 1.6604
• B) rejectif t < -1.6604
• C) rejectif t > 1.9842 or Z < -1.9842
• D) rejectif t < -1.9842
• E) rejectif t > -1.9842

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