Digging Deeper Into Quality Tools Process and Tools Training Toolbook -PQ Systems -http://www.pqsystems.com/ -Information in this presentation is derived.

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Presentation transcript:

Digging Deeper Into Quality Tools Process and Tools Training Toolbook -PQ Systems - -Information in this presentation is derived from PQ Systems

Pareto Diagram

Paretos Law The Pareto principle (also known as the rule, the law of the vital few Vs. trivial many. 80% of the consequences stem from 20% of the causes. –80% of income in Italy went to 20% of the population. –"80% of your sales come from 20% of your clients. –80% of discipline problems come from 20% of the students

Pareto Diagram P. 145 Tool Book What is it? - A bar chart which ranks related measures in decreasing order of occurrence - A tool to separate the significant aspects from the trivial ones - A way to identify the culprit's in a problem and focus improvements in the right area

Pareto Diagram How is it made? 1. Select logical categories. 2. Specify the time period. 3. Collect the data. 4. Construct a frequency table. 5. Draw and scale the horizontal and vertical axes. 6. Draw and label the bars for each category 7. Draw the cumulative percentage line. 8. Review the results of the Pareto.

Pareto Diagram Sample Step 3- Collect The Data (149 Tool Book) CategoryTotal Unexcused Absences35 Drug & Alcohol Abuse7 Tardiness47 Illegal Parking2 Dress Code Violation1 Vandalism2 Class Disruption19 Fighting & Assault10 Total123

Step 4- Construct Frequency Table CategoryFrequency Cumulative Frequency 1.Tardiness47 2. Unexcused Absences Class Disruption Fighting & Assault Drug & Alcohol Abuse Illegal Parking Vandalism Dress Code Violation 1123 Total 123

Step 5- Draw & Scale Horizontal & Vertical Axes % 75% 50% 25% 0

Step 6- Draw & Label The Bars Step 7- Draw Cumulative % Line

In-Process Measure Example

Estimation Check Sheet Weekly Class Errors Hour 1 - Mr. Albert Strategy Total 1-6 Week12-Sep19-Sep29-Sep3-Oct10-Oct17-Oct Addition Subtraction Multiplication Division Application students Total Errors Number of Students 28

Pareto Diagram Lets practice the pareto diagram

Pareto Diagram Answer Key

Pareto Diagram- Safety Concerns Check Sheet Frequency Table Type of Assault Frequency Total Student Vs. Security Officer Intruder Vs. Security Officer Intruder Vs. Teacher Parent Vs. Teacher Student Vs. Teacher Student Vs. Principal Total45

Pareto Diagram- Cumulative Table Type of Assault Cumulative Total 1.) Student Vs. Teacher (25) 2.) Student Vs. Security Officer (9) 3.) Student Vs. Principal (6) 4.) Intruder Vs. Teacher (3) 5.) Parent Vs. Teacher (1) 6.) Intruder Vs. Security Officer (1) Total45

Completed Pareto Diagram