A p chart is a control chart based on plotting ____________.
A)sample means
B)sample proportions
C)sample ranges
D)None of the above

Question

Quizplus · Accepted Answer

A p chart is used to monitor the proportion of nonconforming items in a sample or a process. It is based on plotting sample proportions of nonconforming items against the sample number or time. Therefore, the correct choice is B, sample proportions.

A P Chart Is a Control Chart Based on Plotting