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SPC Statistical Process Control VIP Certification Exam

SPC — Statistical Process Control (SPC) is a core competency tested across several professional quality certifications, most notably the ASQ Certified Quality Engineer (CQE) and ASQ Certified Quality Technician (CQT) exams; no single standalone 'SPC Certification' body exists, so this is an original comprehensive practice set aligned to ASQ Body of Knowledge standards, AIAG SPC Reference Manual (3rd edition) principles, and industry practitioner-level expectations.

56
Questions
90m
Time Limit
75.00%
To Pass
Question 1 of 56👑 VIP

A manufacturing engineer is monitoring shaft diameters produced on a CNC lathe. She collects subgroups of n=5 every hour and plots an X-bar and R chart. After 25 subgroups, she notices the R chart is in statistical control, but the X-bar chart shows point #18 above the upper control limit (UCL). What is the MOST appropriate immediate action?

Questions 2–56 and full explanations are VIP-exclusive.