Hi All;
Kindly I need to make sure from my calculation in the attached sheet
1. I'm calculating the UCL and LCL for Product Overall Yield (Pharmaceutical), I used IMR chart,
2. then, calculate Cp and Cpk. (This is before Improvement)
============================================================
1. I got rid of (OutofSpecs) and (OutofControl) points,
2. then, calculate again new UCL and LCL using the old UCL and LCL as a new USL and LSL,
3. then, calculate Cp and Cpk again (after Improvement)
My Questions:
1. Did I use the correct control chart?
2. Am I right in my steps to calculate UCL and LCL before and after improvement?
3. Am I right in calculating Cp and Cpk before and after improvement? and If, Why Cp and Cpk before improvement is higher than after?????
Kindly I need to make sure from my calculation in the attached sheet
1. I'm calculating the UCL and LCL for Product Overall Yield (Pharmaceutical), I used IMR chart,
2. then, calculate Cp and Cpk. (This is before Improvement)
============================================================
1. I got rid of (OutofSpecs) and (OutofControl) points,
2. then, calculate again new UCL and LCL using the old UCL and LCL as a new USL and LSL,
3. then, calculate Cp and Cpk again (after Improvement)
My Questions:
1. Did I use the correct control chart?
2. Am I right in my steps to calculate UCL and LCL before and after improvement?
3. Am I right in calculating Cp and Cpk before and after improvement? and If, Why Cp and Cpk before improvement is higher than after?????
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