Zeeshan

Tim,
I think what you are trying to accomplish is a case of design of experiments. The defects that you find on the board could also result due to other factors such as tools, operators’ skill,  raw material etc. So before you start hypothesis testing you should ensure that you properly randomize the experiment and then you can use ANOVA to find…[Read more]

Six Sigma is nothing but simplification of product and processes which aims to take the defects to zero level.