question on control chart
Submitted by philzs on Tue, 04/07/2015 - 12:13
hi uys,
need your advices on control char for a question
what do you think and why
q117 Your compagny manufactures bearings for the automobile industry. Control charts are used to determine wheather or not a process is stable or has preditcable performance. Specification limits indicate :
A ) If process is within control limits
B ) Wheather the product would be successful in the market
C ) Maximum and minimum values allowed
D ) Process improvement opportunities.
Forums:
philzs
Tue, 04/07/2015 - 12:47
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OK got it, it's actually easy
OK got it, it's actually easy. The question doesnt ask what is require to validate if it's stabl eor not, no it ask about specification limit.
Control limit =
To verify if process is stable
This is set by PM and stakeholders
Specification limit =
Max/min value provide in the contract by the customer
note :
Control limit must be more strick than Specification limit
coolpmp69
Tue, 04/07/2015 - 13:03
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The correct answer is C)
The correct answer is C) maximum and minimum values allowed
PM should set strict control limits so that the process/product in within the customer's requirement otherwise the chances of accepting the deliverables will slim down.
farhanmazhari
Tue, 04/07/2015 - 15:11
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@coolpmp69 why not A?
@coolpmp69 why not A?
coolpmp69
Tue, 04/07/2015 - 15:30
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@farhanmazhari
@farhanmazhari
If the process is stable and then it will be certainly within control limits. But the question is asking about specification limit and not the control limit so option A is ruled out here