Honda wants to monitor the number of blemishes (scratches, blisters, etc.) on the fenders of its cars using a statistical process control chart. The most appropriate type of statistical process control (SPC) chart that can be used in this scenario is a(n) _____.
A) x-bar chart
B) R-chart
C) Cpk chart
D) c-chart

Question

Quizplus · Accepted Answer

The most appropriate SPC chart to monitor the number of blemishes on the fenders of cars is the c-chart. This chart is used to control the count of defects or nonconformities in a given sample or unit. Since the number of blemishes can be counted and the occurrence rate may vary between cars, a c-chart would be the most suitable choice for monitoring the number of blemishes. The x-bar chart and R-chart are more suitable for continuous data, while the Cpk chart is used to measure how well a process meets a set of specifications.

Honda Wants to Monitor the Number of Blemishes (Scratches, Blisters