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, the p-value of the test is somewhere between 5% and
10%.

Question

Quizplus · Accepted Answer

The p-value for a chi-square test with 14 degrees of freedom (n-1) and a sample standard deviation of 0.67 compared to the hypothesized 0.5 is between 5% and 10%.

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