Can anybody please help me out to calculate the UCL (Upper Control Limit) and LCL(Lower Control Limit).
i tried to do it, but not able to continue after get the average and standard deviation.
i need the formula to get UCL & LCL. am plotting the control chart in excel sheet. Am not clear on how to calculate the limits.
"The most wasted of all days is one without laughter."
-e e cummings