LSSGB Free Sample Questions

Lean Six Sigma Green Belt Practice Test
10/248 questions · Unlock full access
Q1

A financial services company is analyzing loan application processing times. The data is heavily skewed to the right due to a few very complex applications that take significantly longer. Which measure of central tendency would provide the most representative value for a typical application's processing time?

Q2

During a brainstorming session to identify potential causes for manufacturing defects, a project team generates over 50 possible causes. To effectively narrow down these causes for further investigation, which tool should the team use first?

Q3

A Green Belt is leading a project to reduce the cycle time of a claims processing operation. The team has implemented several improvements, including standardized work and a pull system. Which tool is most effective for monitoring the process to ensure the gains are sustained and to detect any new special cause variations? ```mermaid flowchart TD A[Claim Received] --> B{Is Info Complete?} B -->|Yes| C[Data Entry] B -->|No| D[Request Missing Info] D --> A C --> E[Verification] E --> F[Approval] F --> G[Payment Processed] ```

Q4Multiple answers

A project team is developing a new software application and wants to proactively identify potential failures and their impact on the user. They need to prioritize these potential failures to focus their mitigation efforts. Which of the following tools is specifically designed for this purpose? (Select TWO)

Q5

In Design of Experiments (DOE), an interaction effect occurs when the effect of one factor on the response variable depends on the level of another factor.

Q6

A project charter has been created to address a high rate of customer complaints about product delivery times. The problem statement is: "Customers are unhappy with our delivery times." Why is this an ineffective problem statement?

Q7

A hospital's patient admission process has a target completion time of 15 minutes. A recent process capability study for 100 admissions yielded a Cpk of 0.45. What can be concluded about the process?

Q8

A project team is trying to determine if there is a statistically significant difference in the average call handling time between two call centers, A and B. The data from both centers is normally distributed, and the variances are assumed to be unequal. Which hypothesis test is the most appropriate to use?

Q9

A manufacturing plant wants to reduce energy consumption. A Green Belt plans a Design of Experiments (DOE) to optimize the settings of three factors on a large machine: Speed (High/Low), Temperature (High/Low), and Pressure (High/Low). Due to production constraints, only 4 experimental runs can be conducted instead of the full 8. This type of experiment is known as a ___________.

Q10Multiple answers

Which of the following elements are essential components of a comprehensive Control Plan? (Select THREE)