The manufacturer of a refrigerator system produces refrigerators that are supposed to maintain a true mean temperature, ?, 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 from 48°F, which includes both possibilities of the temperature being higher or lower than 48°F. This requires a two-sided test.

The Manufacturer of a Refrigerator System Produces Refrigerators That Are