Meen Chava Corp's computer chip production process yields DRAM chips with an average life of...

Question:

Meen Chava Corp's computer chip production process yields DRAM chips with an average life of 1,800 hours and sigma = 100 hours. The tolerance upper and lower specification limits are 2,400 and 1,600 hours, respectively. Is this process capable of producing DRAM chips to specification?

Process Capability

A process is considered capable if its process capability index is equal to or greater than 1. In this case, a portion of its output equivalent to at least six standard deviations satisfies the specifications.

Answer and Explanation:

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We find the process capability index as

{eq}C_{pk} = \min\left\{ \frac{\text{Process Average}-\text{Lower Specification Limit}}{3*\text{Standard...

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Process Capability: Definition & Elements

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Chapter 4 / Lesson 5
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