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Six Sigma Defects Analysis

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Questions and Answers

What is the primary purpose of a cause-and-effect diagram?

To gather data for a histogram
To analyze the quality characteristics of a product
To evaluate the effectiveness of a solution
To identify the root cause of a problem (correct)

Which of the following is a major cause category in a cause-and-effect diagram?

Equipment (correct)
Customer feedback
Market trends
Management style

What is the purpose of brainstorming in a cause-and-effect diagram?

To identify minor causes from major causes (correct)
To prioritize the causes of a problem
To evaluate the feasibility of possible solutions
To identify the root cause of a problem

What is the advantage of using a check sheet to collect data?

It enables easy collection and analysis of data (D) Signup and view all the answers

What is the purpose of a check sheet in quality control?

To show the location of a defect (D) Signup and view all the answers

What is the primary purpose of a histogram in quality control?

To analyze the distribution of a variable (C) Signup and view all the answers

What is the primary principle of the Pareto diagram in quality control?

Separating the trivial from the important causes (A) Signup and view all the answers

What is the main purpose of a Cause and Effect Diagram?

To visualize the relationships between different variables (A) Signup and view all the answers

What is the main benefit of using a Pareto diagram in problem identification?

It enables the prioritization of problems based on their frequency (C) Signup and view all the answers

What is the purpose of the 'vital few' in the Pareto principle?

To identify the minority of causes that lead to the majority of problems (A) Signup and view all the answers

What is the main difference between a Pareto diagram and a Histogram?

The horizontal scale is categorical in a Pareto diagram (B) Signup and view all the answers

What is the primary goal of Management by Fact?

To make decisions based on relevant data and analysis (C) Signup and view all the answers

What is the primary goal of the process described in the text?

To ensure non-conformity problems become insignificant (B) Signup and view all the answers

What type of diagram is likely being used to identify and analyze the defects in the text?

Pareto chart (C) Signup and view all the answers

What is the primary focus of the analysis in the text?

Reducing the rework cost of defects (B) Signup and view all the answers

What is the purpose of creating a cascading Pareto chart, as shown in Figure 15.6?

To drill down into the specific categories of defects (A) Signup and view all the answers

What is the principle behind the quote in the text, '…the truly important ones, the cause factors which will sharply influence effects, are not many.'?

The 80/20 rule, which states that 80% of problems are caused by 20% of the causes (A) Signup and view all the answers

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