10 free CQE practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
CQE Practice Test 11Tutor mode
Question 1 of 10
Quantitative Methods and Tools
Eight subgroups of n = 5 hole depths (mm) were collected from a drilling cell, as summarized in the table. What is the upper control limit for the X̄ chart? For n = 5: A2 = 0.577, D3 = 0, D4 = 2.114, d2 = 2.326.