Factors for Computing Control Chart Limits (3 sigma) for this problem. Ross Hopkins is attempting to monitor a filling process that has an overall average of 715 ml. The average range Ris 8 ml.
For a sample size of 10, the control limits for 3-sigma x chart are:
Upper Control Limit (UCL) = ml (round your response to three decimal places),
Lower Control Limit (LCL)- mL (round your response to three decimal places).
The control limits for the 3-sigma R-chart are:
Upper Control Limit (UCLR) – mL (round your response to three decimal places)
. Lower Control Limit (LCLR) – mL (round your response to three decimal places).