SCENARIO 12-21 A Filling Machine at a Local Soft Drinks Company Is

question 357

True/False

SCENARIO 12-21
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 12-21, there is sufficient evidence to conclude that the
standard deviation of the amount filled by the machine is not exactly 0.5 ounces when using a 5%
level of significance.

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