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Author: Wen

October 20, 2020

Sample Size, Control Distance, and Type I and Type II Errors in Control Charts

Type I and Type II errors in control charts (or in statistics) are difficult to explain concepts. When trying to explain the impact of…

October 6, 2020

Normal Distribution Visualized (Interactive)

Please click here to open the full presentation: https://www.desmos.com/calculator/lpitkgvcr6 You can: See how the shape of the distribution changes with a difference choice of…

October 6, 2020

“The Area Under the Curve Concept” using Uniform Distribution

Please click the link to see an interactive version. https://www.desmos.com/calculator/5ljlx0c7t5 In this example You can change the value of to see how does it…

September 8, 2020

Business Statistics Lecture Slide

This is the lecture note I have developed for fall 2020 business statistics. I will develop the next half as my course progresses. The…

August 13, 2020

What could go wrong with a product design?

This is what happens when you do not respect the voice of your customers. This illustration can also be used in the project management…

July 21, 2020

Essence of Linear Algebra

This channel provides a good review on Linear Algebra

July 21, 2020

Data, Histogram, Distribution, and Probability

This set of video explains the following ideas: Video 1: How do you get a distribution from a bunch of numbers? Video 2: What…

July 10, 2020

Tuna Quality Inspection Using AI

July 8, 2020

From Factory to Market: Distribution Problem (Linear Programming Approach)

This exercise introduces an important topic in the operations and supply chain management – distribution problem. Essentially, it deals with a problem where you…

July 8, 2020

Service Level, Fill Rate, and Newsvendor Model

Service level is the frequency of the stockout, while the fill rate means the proportion of demands satisfied. Newsvendor model determines the desired service…

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Recent Posts

  • Sample Size, Control Distance, and Type I and Type II Errors in Control Charts October 20, 2020
  • Normal Distribution Visualized (Interactive) October 6, 2020
  • “The Area Under the Curve Concept” using Uniform Distribution October 6, 2020
  • Business Statistics Lecture Slide September 8, 2020
  • What could go wrong with a product design? August 13, 2020
  • Essence of Linear Algebra July 21, 2020
  • Data, Histogram, Distribution, and Probability July 21, 2020
  • Tuna Quality Inspection Using AI July 10, 2020
  • From Factory to Market: Distribution Problem (Linear Programming Approach) July 8, 2020
  • Service Level, Fill Rate, and Newsvendor Model July 8, 2020
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