CQE Practice Test 12

10 free CQE practice questions in the real exam format, covering the official content areas, with an explanation for every answer.

CQE Practice Test 12Tutor mode

Question 1 of 10

Quantitative Methods and Tools

The X̄ chart shows 20 subgroups of a fill height. The plant applies two rules: (1) one point beyond a control limit, and (2) eight consecutive points on the same side of the center line. Which conclusion is best supported?

X̄ chart — fill height (mm)24.224.424.624.82525.225.425.625.81234567891011121314151617181920SubgroupSubgroup mean (mm)
X̄ UCL = 25.60 CL = 25.00 LCL = 24.40