Flexible, affordable statistics education.
Designed to help you master the software you need to enhance your skills and the practical experience you need to get ahead.
Designed to help you master the software you need to enhance your skills and the practical experience you need to get ahead.

This course presents cumulative sum (CUSUM) procedures and exponentially weighted average (EWMA) methods and their variations for monitoring processes.
Instructor(s):Anyone who works in an organization that uses SPC. Six Sigma program instructors, prospective instructors and participants. College and university instructors who want to incorporate this type of material into their curricula.
Dates:Add $50 service fee if you require a prior invoice, or if you need to submit a purchase order or voucher, pay by wire transfer or EFT, or refund and reprocess a prior payment. Please use this printed registration form, for these and other special orders.
Courses may fill up at any time and registrations are processed in the order in which they are received. Your registration will be confirmed for the first available course date, unless you specify otherwise. Multiple course registrations may be entitled to tuition discounts; read more.
This course presents cumulative sum (CUSUM) procedures and exponentially weighted average (EWMA) methods and their variations for monitoring processes. Although Shewhart control charts are very useful and have been used for decades, CUSUM and EWMA methods have also been used for decades and do have better statistical properties than do Shewhart charts. After taking this course, students will know how to implement and interpret control charts using these two methods.
Prerequisite(s):SESSION 1:
This course takes place over the internet, at statistics.com for 3 weeks. During each course week, you participate at times of your own choosing - there are no set times when you must be online. Course participants will be given access to a private discussion board. In class discussions led by the instructor, you can post questions, seek clarification, and interact with your fellow students and the instructor.
The course typically requires 15 hours per week. At the beginning of each week, you receive the relevant material, in addition to answers to exercises from the previous session. During the week, you are expected to go over the course materials, work through exercises, and submit answers. Discussion among participants is encouraged. The instructor will provide answers and comments, and you will receive individual feedback on your homework answers.
As you begin the class, you will be asked to specify your category.
This course offers continuing education units (CEU's). For those successfully completing the course (generally this means marks of 50% or better on the homework), 3.75 CEU's and a record of course completion will be issued by Statistics.com, upon request.
The required text is Thomas P. Ryan's Statistical Methods for Quality Improvement, 3rd ed, from Wiley, which you can purchase here. Wiley offers a 15% discount on this book (and all other statistics titles): enter the code aff15 in the Promotion Code field when prompted during checkout and click the Apply Discount button. (If you are located in Asia, the web procedure for your location may not accept this discount -- try calling your regional Wiley representative.)
Software:Participants will benefit from having access to software that is capable of doing Statistical Quality Control procedures (specifically CUSUM and EWMA procedures) and/or suitable for control charts. Examples and illustrations in this course will be provided for Minitab. Our teaching assistants can offer help with Minitab and JMP. For information about software that is available at no charge, or nominal charge, for statistics.com courses click here.