“great course. Very clear and straight forward”

Jia Wang

“Concise, clear and concepts are very well-explained. ”

Renato De Castello

“Very informational, well taught”

Kim Sapia

“This course led me through the introduction I needed to understand the different SPC Charts and why and when to use them.”

Shere

“Thanks so much, this was a very informative course ”

Dr Bheki S Makhanya

“Great instructions how to conduct SPC!”

Mc Lein Roger M. Lubiano II

“Great on line training for beginners. Ray Sheen is a rock star at simplification. He explains the lessons with clarity and precision. He really wants you to get it and use it. Thank you Ray and GoSkills!”

Ronny Rice

“Very comprehensive course about SPC, I really like the formulas to create SPC charts and also the addition of Minitab examples.”

ITURIEL RODRIGUEZ