Learn how to collect data and display it graphically as well as how to apply graphic tools to problem solving.
Problem Solving Techniques (A8507)
This lesson is designed for participants familiar with the principles of statistical process charts. Basic mathematical skills and graphing techniques are also required.
This lesson covers several problem-solving techniques including brainstorming, Pareto diagrams, cause and effect diagrams, and scatter diagrams. The lesson focuses on how to collect data and display it graphically as well as how to apply graphic tools to problem solving.
Construct a Pareto diagram from data provided by tally charts, plant records, and control charts. Define the Pareto principle of 80/20 rule. Calculate the cumulative frequencies and percentages of defect categories and plot them on a Pareto diagram. Construct a cause and effect diagram. Extend a fishbone diagram through logical backward analysis of a cause. Distinguish between dependent and independent variables. Construct a scatter diagram as well as interpret it for relationships between variables.
STATISTICAL PROCESS CONTROL LIBRARY ( 7 )
This lesson introduces statistical process control (SPC) as a prevention method used to reduce quality costs. The lesson explains variability and shows how to construct a histogram to represent it. The normal curve is described as well as its probability and relevance to the philosophy of never-ending improvement.
This lesson explains how to interpret variable control charts in order to determine whether or not a process is in statistical control. The lesson introduces the concept of performance-based limits for process control and presents basic guidelines for proper sampling. In addition, the principles for interpreting control charts are presented.
This lesson explains the purpose and procedures for performing machine and process capability studies. The lesson shows how to complete and interpret machine capability charts and how to perform a process capability study as well as how to calculate a capability index for a machine and a process.