Question: vQuality control charts usually have a central line and upper and lower control limit lines. Which of the following are reasons that the process being

vQuality control charts usually have a central line and upper and lower control limit lines. Which of the following are reasons that the process being monitored with the chart should be investigated?
Group of answer choices
A change in raw materials or operators
A large number of sample means are on or near the central line
single sample mean falls above or below the control limits
Normal behavior
No real trend in any directionQuality control charts usually have a central line and upper and lower control limit lines. Which of the following are reasons that the process being monitored with the chart should be investigated?
Group of answer choices
A change in raw materials or operators
A large number of sample means are on or near the central line
single sample mean falls above or below the control limits
Normal behavior
No real trend in any directionQuality control charts usually have a central line and upper and lower control limit lines. Which of the following are reasons that the process being monitored with the chart should be investigated?
Group of answer choices
A change in raw materials or operators
A large number of sample means are on or near the central line
single sample mean falls above or below the control limits
Normal behavior
No real trend in any direction

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