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# Using Charts to Present Statistical Data to Non-Statisticians

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The key to getting your message across or allowing others to understand your results (business, medical, technical, etc) is data visualization. The key is to "say it with charts" and show instead of telling.

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### Using Charts to Present Statistical Data to Non-Statisticians

1. 1. Using Charts to Present Your Results to Non-Statisticians Often the most effective way to describe, explore, and summarize a set of numbers… —even a very large set— is to look at pictures of those numbers. -Edward Tufte
2. 2. Say It With Charts
3. 3. Say It With Statistical Charts
4. 4. Which Chart Tells the Best Story?
5. 5. Chart Junk Graphical excellence gives the viewer the greatest number of ideas in the shortest time with the least ink in the smallest space. -Edward Tufte
6. 6. Cute or Clear?
7. 7. What Does a p-value Look Like?
8. 8. What Does a p-value Look Like?
9. 9. What Does a p-value Look Like?
10. 10. Complexity
11. 11. Clarity
12. 12. What’s Important?
13. 13. Pareto Charts Can Tell You
14. 14. Is This Acceptable Performance?
15. 15. No! You Need Statistical Alarms
16. 16. Statistical Process Control in a Nutshell Reality: Every Process Varies Goal: Reduce Variation in Products and Services Types of Variation •Special Cause Variation (something changed) •Common Cause Variation (normal variation)
17. 17. SPC in a Nutshell It’s possible to calculate statistical limits for any type of data and any pattern of variation. Using these “control” limits, it’s possible to create rules to detect special causes of variation whenever a process shifts.
18. 18. Statistics or Charts? • Normality? • Means? • Variances?
19. 19. Reducing Variation Before After
20. 20. Reducing Variation Use Histograms to show reduction in variation Before After
21. 21. http://www.visual-literacy.org/periodic_table/periodic_table.html
22. 22. Periodic Table of Visual Methods http://www.visual-literacy.org/periodic_table/periodic_table.html
23. 23. QI Macros SPC Software for Excel www.qimacros.com Data Analysis & Projects Lean Six Sigma Demystified www.lssyb.com