15. A bottle‐filling operation has a target value of 20 and consistently averages 19.8 with a standard deviation of 0.5. The des

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2 years ago

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15. A bottle‐filling operation has a target value of 20 and consistently averages 19.8 with a standard deviation of 0.5. The des

ign engineers have established an upper specification limit of 22 and a lower specification limit of 18. Which statement concerning this process is TRUE? A. The two‐sided specification process capability index is 1.47 B. The one‐sided specification process capability index is 1.33 C. The process must be in control D. None of these is true

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1 answer:

Sever21 [200] · Answer 1 · 2022-10-20T16:59:38+03:00

Sever21 [200]2 years ago

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Answer:

A. The two sided specification process capability index is 1.47

Explanation:

The formula for calculating process capability index is :

( Upper specification Limit - Average of mean ) / 3 * Standard Deviation

CI = ( 22 - 19.8 ) / 3 * 0.5

CI = 1.47 approximately.