SCENARIO 12-20 A Filling Machine at a Local Soft Drinks Company Is

Multiple Choice

SCENARIO 12-20
A filling machine at a local soft drinks company is calibrated to fill the cans at a mean amount of 12 fluid ounces and a standard deviation of 0.5 ounces.The company wants to test whether the standard deviation of the amount filled by the machine is 0.5 ounces.A random sample of 15 cans filled by the machine reveals a standard deviation of 0.67 ounces.
-Referring to Scenario 12-18,what type of test should be performed?

A) Lower-tail test
B) Upper-tail test
C) Two-tail test
D) None of the above