A
Hello everybody, I'm new here, I hope you can help me.
Do anyone know how to calculate cpk and ppk if in the period of calculation, the spec has changes?
For example during cpk calculation in November, the tolerance change from 10-13 cm to 11-14 cm in the middle of the month.
Can I calculate one by one (before and after) and make average?
Thanks for your kind help.

aditya
Do anyone know how to calculate cpk and ppk if in the period of calculation, the spec has changes?
For example during cpk calculation in November, the tolerance change from 10-13 cm to 11-14 cm in the middle of the month.
Can I calculate one by one (before and after) and make average?
Thanks for your kind help.

aditya