The manufacturer of a refrigerator system produces refrigerators that are supposed to maintain a true mean temperature, μ, of 48°F, ideal for certain beverages.The owner of a
Beverage company does not agree with the refrigerator manufacturer, and will conduct a
Hypothesis test to determine whether the true mean temperature differs from this value.
A)Two-sided
B)Upper-tailed
C)Lower-tailed

Question

Quizplus · Accepted Answer

The owner of the Beverage company wants to test if the true mean temperature is different (either higher or lower) from the stated 48°F, which implies a two-sided test is appropriate.

The Manufacturer of a Refrigerator System Produces Refrigerators That Are