ISSSP, the non-profit International Society of Six Sigma Professionals, providing a forum and resources for Lean, Six Sigma, and Operational Excellence practitioners, is proud to announce its August webinar. We are honored to have John Noguera, Co-founder and Chief Technology Officer of SigmaXL, Inc. as our speaker on Wednesday, August 21, 2019. The topic: SPC [...]
Hitesh Bhasin, in his blog from Marketing91, outlines how to conduct a Service Gap Analysis. A service gap is the difference between what the customers expect and what they perceived was delivered. This is based on a Gap Model. The Gap Model identifies six types of gaps that can occur along the way from the [...]
“I KEEP six honest serving-men (They taught me all I knew); Their names are What and Why and When And How and Where and Who.” From “The Elephant’s Child” in Just So Stories, 1902, Rudyard Kipling. This video from Quality Hub India, with a realistic example, presents how to use 5W1H to write an effective [...]
The International Society of Six Sigma Professionals (ISSSP) is seeking experienced professionals to deliver webinars for its continuing monthly webinar offerings. You can find out more at the following link. Webinar presenters receive a one-year free Professional membership to the ISSSP organization. Webinars use the GoToMeeting platform and are 45 minutes long, with up to [...]
Queuing Theory is the study and analysis of waiting lines and uses mathematics to predict queue lengths and waiting times. This is important in the design and operation of many businesses such as theme parks, airports, call centers, and many others. However, you don’t need a degree in operations research to determine average wait times [...]
ISSSP, the non-profit International Society of Six Sigma Professionals, providing a forum and resources for Lean, Six Sigma, and Operational Excellence practitioners, is proud to announce its June webinar. We are honored to have Mark Anderson and Pat Whitcomb, Principals at Stat-Ease, and Design of Experiments experts to be our speakers on Wednesday, July 17, [...]
A population is the entire collection of elements, parts, people, etc. in the study of interest. It is rare that you have the entire population available for your study. So, in order to collect data, you must take a sample. A sample is a subset from the population of interest on which you will make [...]
What are some of the standard approximations for confidence intervals, and when are they used? First, let’s review the definition of a confidence interval. Confidence Interval: A range of values so defined that there is a specified probability that the value of a parameter lies within it. Example for the most common parameter: the mean. [...]
What is the power of a statistical test and why use it? Power is the probability of making a correct decision (to reject the null hypothesis) when the null hypothesis is false. To determine it, one needs to assume a particular alternative hypothesis. Because power focuses on “making a correct decision” it is natural to [...]
The National Institute of Standards and Technology (NIST) has spent decades developing and maintaining the most comprehensive, free guide for statistical analysis available. While the intended audience is listed as scientists and engineers, the handbook will be of use to anyone having to conduct statistical analysis. As you can see, the handbook chapters lay [...]
