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

True/False

TABLE 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.
-True or False: Referring to Table 12-20,in order to perform the test,you need to assume that the amount filled by the machine follows a normal distribution.