Assessment Flashcards
16 cards from real Certified Six Sigma Black Belt Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 16 Assessment flashcards as text
Which of the following tools should be used when there are several criteria and only one possible option?
Answer: Pugh matrix
A Pugh matrix (also known as a decision matrix or selection matrix) is a structured tool used to evaluate multiple alternatives against a set of criteria. It's particularly useful when there are several options and a need to systematically compare and select the best one based on weighted criteria. This tool helps in making objective decisions by scoring each option against a baseline.
Which method aids in boosting process stability when a messy workstation is the variation cause?
Answer: 5S
5S is a lean methodology focused on workplace organization and standardization to improve efficiency, safety, and quality. A messy workstation is a direct indicator of poor organization and can lead to increased variation, errors, and wasted time searching for tools. Implementing 5S (Sort, Set in Order, Shine, Standardize, Sustain) directly addresses this by creating a clean, organized, and standardized work environment, thereby boosting process stability.
A six sigma team's process for creating a problem statement will help to
Answer: Achieve consensus and ownership of the process
The process of creating a problem statement in a Six Sigma project is crucial for ensuring that all team members and stakeholders clearly understand and agree upon the problem being addressed. This collaborative effort fosters consensus, aligns expectations, and builds a shared sense of ownership for the project's goals and the process improvements. It defines the scope and purpose, guiding the entire project.
Which of the following will most likely have an impact on how consumers perceive quality?
Answer: Service and repair policies
While many factors influence customer perception, service and repair policies directly impact a customer's experience with a product or service after purchase. Fair, efficient, and responsive service and repair can significantly enhance customer satisfaction and loyalty, even if initial product quality has minor issues. Conversely, poor policies can severely damage perception, regardless of product quality.
Which of the following best describes the DPMO formula?
Answer: DPO×1,000,000
DPMO stands for Defects Per Million Opportunities. It is calculated by taking the total number of defects, dividing it by the total number of opportunities for defects, and then multiplying by one million. DPO (Defects Per Opportunity) is simply the number of defects divided by the total opportunities, making DPMO equivalent to DPO multiplied by 1,000,000.
The data collector should be ethical, which is a crucial component of data collection.
Answer: Know how the data are to be used
Ethical data collection requires the collector to understand the purpose and intended use of the data. This knowledge helps ensure that data is collected accurately, impartially, and in a way that is relevant to the problem being studied, preventing misinterpretation or misuse. Without this understanding, data might be collected inappropriately, leading to flawed conclusions or biased outcomes.
Which of the following should a change agent assist the organization with?
Answer: Overcome fear of the unknown
A change agent's primary role is to facilitate organizational change, which often involves helping individuals and groups adapt to new processes, systems, or cultures. A significant barrier to change is the fear of the unknown, including job insecurity, loss of control, or uncertainty about new ways of working. The change agent helps by communicating clearly, providing support, and addressing concerns to alleviate this fear and build acceptance.
A technique that modifies data without significantly lowering precision or accuracy is referred to as
Answer: Coding
Coding is a technique used to transform data, often by assigning numerical or symbolic values to categories or by grouping quantitative data. This process simplifies data for analysis and management without losing essential information, thereby maintaining the original precision and accuracy of the dataset. It's a fundamental step in preparing data for statistical analysis or interpretation.
Which of the following best defines a team that includes people with various jobs or skill sets from several organizational divisions?
Answer: Cross-functional
A cross-functional team is specifically designed to bring together individuals from different functional areas, departments, or with diverse skill sets within an organization. This diversity allows the team to tackle complex problems or projects by leveraging a wide range of expertise and perspectives. The term 'cross-functional' directly describes this characteristic of drawing members from various organizational divisions.
Which of the following pairs of data measurements is used to calculate total variance in measurement system analysis?
Answer: Measurement variance and process variance
In Measurement System Analysis (MSA), the total observed variation in data is typically decomposed into two primary components: the variation inherent in the actual process or product being measured (process variance) and the variation introduced by the measurement system itself (measurement variance). By understanding both, organizations can determine how much of the observed variability is due to the process and how much is due to the measurement system, guiding improvement efforts. The sum of these two variances gives the total variance.
When the sampling technique utilized results in a discrepancy between the sample result and the population value, the discrepancy is known as
Answer: Bias
Bias in sampling refers to a systematic error that causes the sample result to consistently differ from the true population value. This discrepancy arises when the sampling method itself is flawed, leading to a non-random or unrepresentative selection of individuals. Unlike random error, bias is a consistent and directional deviation that can significantly distort the accuracy of conclusions drawn from the sample.
A team that looked into measures to lessen power outages came to the conclusion that there are only three possible causes of an outage: grid failure, local transformer failure, or local overload. They create a design that "fans out" utilizing the power outage as the handle of the fan after thoroughly examining the three events for potential causes, etc. Which method of problem resolution encapsulates these advancements the best?
Answer: Tree diagram
A tree diagram is a visual tool used to systematically break down a broad problem or goal into its constituent parts, causes, or potential solutions, fanning out into increasingly detailed levels. The scenario describes starting with a main problem (power outage) and then branching out to its three primary causes, which are then further examined. This structured, hierarchical breakdown is the defining characteristic and purpose of a tree diagram in problem-solving.
The mean of a sample drawn at random from a population is not the same as the mean of the population. This is because:
Answer: Sampling error
Sampling error is the natural and expected discrepancy that occurs between a sample statistic (like the sample mean) and the true population parameter (like the population mean). It arises because a sample is only a subset of the population and, by chance, will not perfectly mirror the entire population. This inherent variability is a fundamental aspect of inferential statistics and is not due to measurement inaccuracies or errors in hypothesis testing.
A method for illustrating the relationship between client wants and product attributes
Answer: Relationship matrix
A relationship matrix is a powerful tool used to visually map and quantify the connections between different sets of items, such as customer requirements (wants) and product attributes. It helps teams understand how well specific product features address customer needs, allowing for prioritization and design optimization. This matrix provides a clear, structured way to illustrate these interdependencies.
SWOT is an abbreviation meaning
Answer: Strength weakness opportunity and threat
SWOT is a widely recognized acronym in strategic planning and business analysis. It stands for Strengths, Weaknesses, Opportunities, and Threats. This framework helps organizations identify internal factors (Strengths and Weaknesses) and external factors (Opportunities and Threats) that can impact their ability to achieve objectives, guiding strategic decision-making.
Total Quality Management (TQM) was created by a quality leader, who is:
Answer: Feigenbaum
Armand V. Feigenbaum is widely recognized as a pioneer in the field of quality management and is credited with developing the concept of Total Quality Control, which evolved into Total Quality Management (TQM). He emphasized that quality is a company-wide responsibility, not just a function of the production department. His work laid the foundation for many modern quality philosophies.