1.

There are two basic types of control charts:I. When the method of inspection is by variables, the most popular control charts are X̅ and R charts.II. When the method of inspection is by attributes, the most popular control chart is P-charts.Which of the above statements is/are true?

A. I only
B. II only
C. I and II both
D. Neither I nor II
Answer» D. Neither I nor II


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