Author Question: If the control limits in statistical quality control are set at two standard deviations above and ... (Read 62 times)

dalyningkenk · **on:** Aug 22, 2018

If the control limits in statistical quality control are set at two standard deviations above and below the mean,

A. The cause of the errors that exceed the number allowable for the control limits is due to chance.
B. The cause of errors that exceed the number allowable for the control limits can be attributed to some factor other than chance.
C. Employee fatigue is the reason for errors exceeding the control limits.
D. All errors fall within the control limits.

Question 2

Normal distribution, an important aspect of quality control, is based on the principle that randomly observed occurrences of a sufficient quantity tend to be distributed around the mean or average of all occurrences.

Indicate whether the statement is true or false.