I picked a random answer but do not know the actual answer t

I picked a random answer but do not know the actual answer to this question, that is why D. is selected.

Explain why it is important to update the control charts as soon as new data becomes available Choose the correct answer below OA· The new data may change the centerline, which will change contol limits. OB. The new data may change the standard error, which wll change contol limits. C. The new data may prove that the process is in control and further sampling is not required. OD. The new data may indicate that the process has changed and action is required.

Solution

1. Option D, in a way, implies option A, B and C. New data might result in change in the mean and standard error, which results in change in the control limits. Also, it might suggest that the process is in control, if all the new data points lie within the same control lines. Hence, further sampling would not be required. This can we surmised by saying that the process has changed and action is required.

2. B. This is an upper specification limit because it is imposed by external consideration. (specification limit as it does not voice astronomer\'s demand).