The Quality Assurance Department selected 12 samples of 100 printed circuit boards and tested them. The number of defective printed circuit boards in each sample was 3,3,0,5,1,1,5,6,6,2,0,and 1. What kind of control chart should be constructed to monitor the process?
A)Mean chart
B)Range chart
C)Percent defective chart
D)c-bar chart

Question

Quizplus · Accepted Answer

Since the data represents the number of defective printed circuit boards in each sample, a percent defective chart (also known as a p-chart) should be constructed to monitor the process. The p-chart is used to track the proportion of defective items in a sample over time and is appropriate for count data. The other options, mean chart (A), range chart (B), and c-bar chart (D), are more appropriate for continuous data.

The Quality Assurance Department Selected 12 Samples of 100 Printed