Lean Six Sigma Yellow Belt Certification Lean Six Sigma Yellow Belt The Analyze Phase Questions and Answers 2

Question 1

Which graphical tool is used in the Analyze phase to display the relationship between two continuous variables?

Accepted Answer

Scatter diagram

Answer

Pareto chart

Answer

Histogram

Answer

Control chart

Question 2

What is the primary purpose of a hypothesis test during the Analyze phase?

Accepted Answer

To determine if observed differences are statistically significant

Answer

To collect baseline data for the project

Answer

To define the project scope

Answer

To implement process improvements

Question 3

In a cause-and-effect diagram, what do the 'bones' branching off the main spine represent?

Accepted Answer

Categories of potential causes

Answer

Steps in the process flow

Answer

Customer requirements

Answer

Measurement data points

Question 4

What does a p-value less than 0.05 typically indicate in the Analyze phase?

Accepted Answer

The result is statistically significant and the null hypothesis should be rejected

Answer

The process is in statistical control

Answer

The sample size is too small

Answer

The data follows a normal distribution

Question 5

Which technique involves asking 'why' repeatedly to drill down to the fundamental cause of a problem?

Accepted Answer

5 Whys

Answer

FMEA

Answer

Benchmarking

Answer

Voice of the Customer

Question 6

What is the purpose of a multi-vari chart in the Analyze phase?

Accepted Answer

To identify the largest source of variation among multiple factors

Answer

To track defects per million opportunities

Answer

To map the entire value stream

Answer

To calculate process capability indices