When the Lower control limits for a p chart are less than zero, what is done?
Posted: Thu Jul 14, 2022 1:47 pm
a) The value LCL<0 is utilized in control chart
b) There is a certain constant C added to both UCL and LCL, i.e. UCLnew=UCLold+ C and LCLnew=LCLold+C
c) There is certain constant value added to LCL only, i.e. LCLnew=LCLold+C
d) LCL=0 is taken and assumed that control chart only has the upper control limit
b) There is a certain constant C added to both UCL and LCL, i.e. UCLnew=UCLold+ C and LCLnew=LCLold+C
c) There is certain constant value added to LCL only, i.e. LCLnew=LCLold+C
d) LCL=0 is taken and assumed that control chart only has the upper control limit