A manufacturer produces refrigerators that are claimed to maintain a true mean temperature of 7°C,ideal for certain beverages.The owner of a beverage company wants to conduct a test to determine if the true mean temperature of the refrigerators is different from this value.

Question

Quizplus · Accepted Answer

Since the owner wants to determine if the true mean temperature of the refrigerators is different from the claimed value of 7°C, we need to perform a two-sided hypothesis test. This means we need to check if the mean temperature is either greater than or less than 7°C. Therefore, the correct choice is C) Two-sided.

A Manufacturer Produces Refrigerators That Are Claimed to Maintain a True