Lean Six Sigma Yellow Belt Certification Basic 4

Question 1

Which type of data is described as categorical and placed into distinct groups (e.g., pass/fail, yes/no)?

Accepted Answer

Attribute data

Answer

Attribute data is discrete and categorizes items into groups such as pass/fail, good/bad, or defective/non-defective.

Question 2

The 'Analyze' phase of DMAIC is best described as:

Accepted Answer

Identifying and verifying root causes of the problem

Answer

In the Analyze phase, teams use data and tools to identify and confirm the root causes of process problems.

Question 3

Pull systems in Lean are designed to:

Accepted Answer

Produce only what is needed, when it is needed, based on actual demand

Answer

Pull systems trigger production based on actual downstream demand, reducing overproduction and excess inventory.

Question 4

A fishbone (Ishikawa) diagram categorizes potential causes typically under which common categories?

Accepted Answer

People, Machine, Method, Material, Measurement, Environment

Answer

Fishbone diagrams organize potential root causes into the 6M categories: Man, Machine, Method, Material, Measurement, and Mother Nature (Environment).

Question 5

Which metric represents the percentage of time a process produces a good product without any rework or repair?

Accepted Answer

First Time Yield (FTY) or First Pass Yield

Answer

First Time Yield (FTY) measures the percentage of units that pass through a process step correctly without rework on the first attempt.

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification Basic 4