20 STM3633 sem 1 24-25

What does the 'D' in DMAIC stand for?

• Determining

• Designing

• Defining

• Developing

Which tool is used to identify possible causes for a problem?

• Histogram

• Control chart

• Scatter Diagram

• Cause-and-Effect Diagram

What is the purpose of a Pareto chart?

• To show the distribution of data

• To measure process capability

• To identify the most significant factors contributing to a problem

• To analyze process flow

What type of variation does a common cause refer to?

• Special cause variation

• Predictable variation

• Random/natural variation

• Unusual fluctuations

What does a control chart help to monitor?

• Customer satisfaction

• Market trends

• Process changes over time

• Employee performance

What is the main advantage of using a scatter diagram?

• It summarizes data in a structured form

• It identifies relationships between two variables

• It visualizes the distribution of data

• It shows the frequency of defects

What does the Pareto principle state?

• 80% of problems come from 20% of factors

• 20% of customers account for 80% of sales

• 80% of defects are caused by 20% of processes

• 20% of products generate 80% of revenue

What type of control chart is used for attribute data?

• R chart

• X-bar chart

• p-chart

• Variable control chart

What is the primary purpose of a control chart?

• To track process performance over time

• To analyze financial data

• To identify customer preferences

• To measure employee productivity

What type of data is best represented by a p-chart?

• Continuous data

• Time series data

• Qualitative data

• Attribute data