TABLE 18-10
Below is the number of defective items from a production line over twenty consecutive morning shifts.
-True or False: Referring to Table 18-10,based on the c chart,there appears to be a special cause of variation in the process.

Question

TABLE 18-10
Below is the number of defective items from a production line over twenty consecutive morning shifts. 
-True or False: Referring to Table 18-10,based on the c chart,there appears to be a special cause of variation in the process.

Quizplus · Accepted Answer

The c chart is used to monitor the count of defects in a sample of constant size over time. Based on the control limits and the pattern of the data in Table 18-10, it appears that there is a special cause of variation present in the process. The data has several points beyond the upper control limit and no points below the lower control limit, indicating that there may be a systemic issue that needs to be addressed.

TABLE 18-10 Below Is the Number of Defective Items from a Production