A manufacturer claims that the mean amount of juice in its 500 mL bottles is 501.2 mL.A consumer advocacy group wants to perform a hypothesis test to determine whether the mean amount is actually less than this.

Question

Quizplus · Accepted Answer

A lower-tailed test would be appropriate in this case because the consumer advocacy group wants to determine if the mean amount of juice is less than the manufacturer's claim of 501.2 mL.

A Manufacturer Claims That the Mean Amount of Juice in Its