Withdrawals/refunds (minus a 15% service charge of the full balance) are granted for 3 days* after purchase. All withdrawal/refund requests must be made by email to refund@sixsigmaonline.org. Please include your name and address. All refunds will be credited to the original payment source.
*note: refund requests must be made within 72 hours of our initial receipt of your payment.
Originally developed by Bill Smith at Motorola in 1986, the Six Sigma Training program was created using some of the most innovative quality improvement methods from the preceding six decades. The term "Six Sigma" is derived from a field of statistics known as process capability. The term 6 Sigma refers to the ability of manufacturing processes to produce a very high proportion of output within specification. Processes that operate with "six sigma quality" over the short term are assumed to produce long-term defect levels below 3.4 defects per million opportunities. Six Sigma's goal is to improve overall processes to that level of quality or better.
