S
Stephen Colclough
+ Only tolerance type dimension
I have a problem. A dimension 39.5 -0/+0.5 is defined as a capability dimension. On completion of the study the cpk is 0.4289 with the mean 39.53 and an average range of 0.08. All readings are in tolerance with a minimum size of 39.5 and maximum 39.62. This cpk value was calculated using standard formula, is their an alternative formula to account for a one sided tolerance?
I have a problem. A dimension 39.5 -0/+0.5 is defined as a capability dimension. On completion of the study the cpk is 0.4289 with the mean 39.53 and an average range of 0.08. All readings are in tolerance with a minimum size of 39.5 and maximum 39.62. This cpk value was calculated using standard formula, is their an alternative formula to account for a one sided tolerance?