CQE (CQE) Course 5

Question 1

In Six Sigma, the DMAIC roadmap is applied to:

Accepted Answer

Improve existing processes by reducing defects

Answer

DMAIC (Define, Measure, Analyze, Improve, Control) is a data-driven methodology for improving existing processes and reducing defect rates.

Question 2

Which hypothesis test is appropriate for comparing the means of two independent groups when population variances are unknown and assumed unequal?

Accepted Answer

Welch's t-test

Answer

Welch's t-test (unequal variance t-test) compares two independent group means without assuming equal variances.

Question 3

A Pareto chart helps a quality engineer to:

Accepted Answer

Identify the vital few causes that account for most of the problems

Answer

A Pareto chart ranks defect categories by frequency and cumulative percentage, revealing the 'vital few' causes that drive the majority of problems.

Question 4

When a control chart shows a run of 8 consecutive points on the same side of the centerline, this indicates:

Accepted Answer

A special cause that should be investigated

Answer

A run of 8 or more consecutive points on one side of the centerline is a non-random pattern that signals a special (assignable) cause.

Question 5

Which element is NOT typically included in a Quality Management System (QMS) document hierarchy?

Accepted Answer

Marketing strategy

Answer

A QMS document hierarchy consists of the quality policy, quality manual, procedures, and work instructions; marketing strategy is a business document outside the QMS scope.

CQE - Certified Quality Engineer Practice Test

CQE - Certified Quality Engineer Practice Test

CQE (CQE) Course 5