Which type of chart would be best for monitoring the proportion of items that are defective?
A) p chart
B) Run chart
C) $\bar { x } \text { chart }$
D) R chart

Question

Quizplus · Accepted Answer

A p chart is designed to monitor the proportion (or percentage) of defective items in a sample or process over time. This type of chart is useful for identifying when the process is producing too many defects and needs to be adjusted or improved. A run chart is used to track the performance of a process over time, but does not specifically focus on the proportion of defective items. The other two options (X-bar chart and R chart) are used for monitoring process variability and average performance, respectively, and are not directly applicable for monitoring the proportion of defective items.

Which Type of Chart Would Be Best for Monitoring the Proportion