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…
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…
June 30, 2020 Research Article Collection for Quality Management Class Shah, R., Ball, G. P., & Netessine, S. (2017). Plant operations and product recalls in the automotive industry: An empirical investigation. Management Science, 63(8), 2439-2459. (https://doi.org/10.1287/mnsc.2016.2456)…
June 30, 2020 Variation Reduces Capacity Utilization There is a well-known story about how to “properly” fill a jar with sand, rocks, and water. For the detailed story, please refer to…
June 29, 2020 Quality Control in Factory Level: OnePlus Factory Tour by Linus Tech Tips In this video, a tech Youtuber, Linus, is showing us around the OnePlus factory. You do not have much factory experience or have never…
June 29, 2020 Service Quality: Moving Company in Japan Evaluating the quality of manufactured products can be straightforward because they are tangible. But the evaluation of services, which are intangible, can be more…
June 29, 2020 Good Management and Performance Excellence is Hard to Copy To read the full article, please visit: https://hbr.org/2017/09/why-do-we-undervalue-competent-management References: Sadun, R., Bloom, N., & Van Reenen, J. (2017). Why do we undervalue competent management. Harvard…
March 8, 2020 From Population Distribution to Sampling Distribution (Simulation) Sampling distribution is an important concept in statistics. We rely on sampling distributions (e.g., sample mean and sample proportion) to make decisions about whether…
February 8, 2020 Sampling Distribution and Testing Hypothesis I developed this lecture note spring 2020 using R markdown for the first time. It supports the compilation of R, Markdown, and LaTex code…