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IASSC Exam ICBB Topic 4 Question 90 Discussion

Actual exam question for IASSC's ICBB exam
Question #: 90
Topic #: 4
[All ICBB Questions]

The reported Cpk for a process with an average of 98 units, a spread of 16 units and upper and lower specification limits of 115 and 90 units would be?

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Suggested Answer: C

by Louvenia at May 03, 2025, 09:44 PM

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Mose
2 days ago
Actually, the correct answer is D) 1.25. The Cpk value indicates how well a process can meet the specifications, and in this case, it exceeds 1.00.
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Rory
13 days ago
This question is making my head spin. I need to remember the Cpk formula - something about standard deviations and spec limits. You know what, I'm just going to go with D) 1.25 and hope the examiner has a sense of humor.
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Lilli
1 days ago
I think the Cpk formula involves standard deviations and spec limits.
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Orville
20 days ago
Hey, isn't Cpk just another way of saying 'Can't Possibly Know'? I'm going to go with B) 0.75 and hope for the best. At least it's not as bad as E) 'Completely Perplexed'.
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Alecia
22 days ago
I'm not sure, but I think the Cpk value should be higher than 1.00 for a good process capability.
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Stephane
23 days ago
Okay, let's break this down. If the process average is 98 and the spread is 16, that means the process is well within the spec limits. I'd say the Cpk has got to be 1.25. Nailed it!
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Sabina
27 days ago
Wait, wasn't Cpk something to do with how well your process is centering between the spec limits? I'm pretty sure the answer is C) 1.00. Gotta love those statistics questions, am I right?
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Gaston
1 months ago
I think the answer is C) 1.00.
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Glenn
1 months ago
Hmm, let me think about this. The spread is 16 units, and the spec limits are 115 and 90 units. I think that's going to give us a Cpk value of around 1.00. Sounds about right to me.
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Cherry
16 days ago
I agree, the Cpk value should be around 1.00 with those specifications.
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