First of all, I made a mistake, I confuse LCL and ULC from control charts with the LSL and LSL (sorry by that).
I want to measure the Process capability index, where C_p = (USL – LSL)/6s, thus I need to get USL and LSL.
They do not exist, as I told you. 97% +/-3% is the only datum I have from the customer.
My yield is calculated…[Read more]
I need to get the process capacity and I want to know how the get the LSC and USC, and this is my scenario:
– They are not determine by any norm.
– They are not defined by the customer (the only […] 8 years, 11 months ago