The capability index (C_pk)indicates the position of the mean and tails of a processes variance relative to design specifications

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Quizplus · Accepted Answer

The capability index does indeed indicate the position of the mean and tails of a process's variance relative to design specifications. Specifically, the index compares the process variability to the allowable tolerance range specified in the design, and measures the ability of the process to produce outputs within that range. A value of 1 indicates that the process is perfectly capable of meeting design specifications, while values less than 1 indicate that the process is producing output outside of the acceptable tolerance range.

The Capability Index (Cpk)indicates the Position of the Mean and Tails

The Capability Index (C_pk)indicates the Position of the Mean and Tails