Question

Refer to the run chart given in Section 8.1 Exercise 2.

Determine if the process appears to be within statistical control. If not, state the reason why not.

Answer 1

The process is within control because the amount of data points in the upper limit is equal to that in the lower limit of the given graph

Explanation:

The given process is within statistical control because the number of data points in the upper limit is equal to that in the lower limit. Other reasons that determine that a process graph is within control includes:

• Most points are near the average.

• A few points are near the control limits.

• No points are beyond the control limits.