Hi, can someone tell me why I getting a strange Cpk value? I know that that if you get a negative ( - ) cpk is because your mean is above or under spec's limit, but what I getting is -1.00000. Do I nee to adjust the setting on Datapage...help......
Here is an example : Bore Dia Spec: 17.7 / 17.9 mm. Min found 17.37 / Max found 17.79mm. As you can see there is a lot of variation. Also Matthew, I noticed that when I run the report on Dataspage and asked for CPK the LSL and USL are the same 17.9mm AThis might be part of the problem? since LSL and USL are needed to calculate the CPK.....
Here is an example : Bore Dia Spec: 17.7 / 17.9 mm. Min found 17.37 / Max found 17.79mm. As you can see there is a lot of variation. Also Matthew, I noticed that when I run the report on Dataspage and asked for CPK the LSL and USL are the same 17.9mm AThis might be part of the problem? since LSL and USL are needed to calculate the CPK.....
