In a manufacturing process,if the limits for a control chart are set too _____________,the risk of unnecessarily tampering with the process ____________.
A)Tight,increases
B)Loose,increases
C)Tight,decreases
D)None of the above

Question

Quizplus · Accepted Answer

If the limits for a control chart are set too tight, it means that the control limits are very close to the process mean, which increases the risk of falsely identifying common cause variations as special cause variations. This may lead to unnecessary tampering with the process, which could actually increase the variation and negatively impact the process performance. Hence, it is best to set the control limits at a reasonable distance from the process mean to detect the real changes in the process performance and avoid unnecessary intervention. Setting the control limits too loose may also increase the risk of missing real changes in the process, but it may not necessarily lead to tampering with the process.

In a Manufacturing Process,if the Limits for a Control Chart