Dear Anil
The control chart presentation is good, but for not acknowledging the sources from where you have got the information. This is termed as "Plagiarising" in the academia. It is also possible that you might have violated Copyright laws.
For example, I found some of your slides at
7qc Tools 173
Have a nice day.
Simhan
Learning and Teaching Fellow (Retd.)
The University of Bolton, UK.
"It is never too late to learn or improve oneself"