A machine fills plastic bottles with 10 ounces of shampoo. The tolerance is 100 ± 0.25 ounce.
The process has a standard deviation of 0.02 ounce. Calculate the Process Capability Index (Cpk) for a
sample that has an average fill quantity of 100.05 ounces and evaluate the capability of the process.
Cpk=
Evaluation: ____
