You have a process with a design upper limit of 214.0 and a lower limit of 206.4. Your standard deviation is 0.520 . What is the process capability ratio for this process?

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Logard · Answer 1 · 2024-01-17T16:33:40+0000

Final answer:

The process capability ratio for this process with an upper limit of 214.0, a lower limit of 206.4, and a standard deviation of 0.520 is approximately 2.44.

Step-by-step explanation:

The process capability ratio (PCR) is used to assess the capability of a process to meet its specification limits. The PCR is calculated using the formula:

PCR = (USL - LSL) / (6σ)

Where USL is the upper specification limit, LSL is the lower specification limit, and σ is the standard deviation.

Given that the USL is 214.0, LSL is 206.4, and the standard deviation is 0.520, we can calculate the PCR as follows:

PCR = (214.0 - 206.4) / (6 * 0.520) = 7.6 / 3.12 = 2.4359

Hence, the process capability ratio for this process is approximately 2.44.

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You have a process with a design upper limit of 214.0 and a lower limit of 206.4. Your standard deviation is 0.520 . What is the process capability ratio for this process?

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