ASQ Certified Quality Process Analyst & Improvement Associate 2

Question 1

A process is said to be in a state of statistical control when:

Accepted Answer

Only common cause variation is present

Answer

Statistical control means the process exhibits only common cause (natural, random) variation with no special causes present.

Question 2

Which DMAIC phase focuses on identifying and validating the root cause of a problem?

Accepted Answer

Analyze

Answer

The Analyze phase uses data and tools like fishbone diagrams and hypothesis testing to identify and validate root causes.

Question 3

A Pareto chart is based on which principle?

Accepted Answer

Roughly 80% of problems stem from 20% of causes

Answer

The Pareto principle (80/20 rule) states that approximately 80% of effects come from 20% of causes, helping prioritize improvement efforts.

Question 4

What does a process capability index (Cpk) measure?

Accepted Answer

How centered and capable a process is relative to its specification limits

Answer

Cpk accounts for both the spread and the centering of a process relative to the specification limits.

Question 5

In a fishbone (Ishikawa) diagram, the 'bones' typically represent:

Accepted Answer

Major categories of potential causes

Answer

The branches (bones) of an Ishikawa diagram represent major cause categories such as Man, Machine, Method, Material, Measurement, and Environment.

ASQ - American Society for Quality Certification Practice Test