Statistics applied to Quality Control

Statistics applied to Quality Control

1. Ishikawa believed that 90% of a company's problems could be improved using these seven tools, and they could easily be taught to any member of the organization

2. Cause and Effect Diagrams

   • Also Known as Ishikawa and Fishbone Diagrams
   • They are employed to identify the underlying symptoms of a problem or effect as a means of finding the root cause.

3. Pareto Charts

   • is a type of chart that contains both bars and a line graph
   • where individual values are represented in descending order by bars, and the cumulative total is represented by the line.

4. Check Sheet

   • Is a simple document that is used for collecting data in real-time and at the location where the data is generated.
   • The document is typically a blank form that is designed for the quick, easy, and efficient recording of the desired information, which can be either quantitative or qualitative

5. Scatter Plots

   • Is a type of mathematical diagram using Cartesian coordinates to display values for two variables for a set of data.
   • A scatter plot is used when a variable exists that is under the control of the experimenter

6. Control Charts

   • Also known as Shewhart charts or process-behaviour charts
   • In statistical process control are tools used to determine whether or not a manufacturing or business process is in a state of statistical control

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