The Manufacturer of a Refrigerator System Produces Refrigerators That Are

Multiple Choice

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