“Excellent ”

Xolani Caleni

“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 course for building a solid 6Sigma foundation.”

Bill Gillaspey

“Great course.”

Esemoto Raphael Ndoh

“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

“In depth but Ray made it a phenomenal experience, great instructor!”

Justin Shake

“Amazing concise and effective course explaining the ground skills for MSA!”

Renato De Castello

“Very well taught !”

Ansen Moore

“Excellent ”

Xolani Caleni

“This course is great training that you can use to enhance your knowledge when using Minitab. I really like the way it's designed to help you to understand the theoretical and practical side of using Minitab.”

ITURIEL RODRIGUEZ

“A lot of data and measures to absorb but Ray made as simple as possible by using his expertise in breaking down each category of hypothesis testing and simplifying it. Thanks Ray!”

Ronny Rice

“Great course!”

Sarah Heller

“There was nothing easy about this course. I am more than satisfy about the quality of this course.”

Fernando Escobar

“Excel and Minitab applications are useful.”

Mc Lein Roger M. Lubiano II

“Good review of hypothesis testing”

Lucas