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Which of this stands correct for the relation between the ARL for a shewhart control chart and the individual control chart ARL?

Which of this stands correct for the relation between the ARL for a shewhart control chart and the individual control chart ARL? Correct Answer ARLindividual control chart≪ARLshewhart control chart

The Average run length for any individuals control chart with 3 sigma limits is considerably lower than the value of Average run length for any Shewhart control chart.

Related Questions

Which of the following is/are the advantages of using a control chart for inspection? (i) A control chart indicates whether the process is in control or out of control. (ii) A control chart determines process variability. (iii) A control chart ensures product quality. (iv) Scrap or percentage reduction can be reduced by taking the necessary actions in time against the warnings indicated by control charts. (v) Control charts build up the reputation of the organization through customer’s satisfaction. (vi) The control chart can detect the unusual variations taking place in a process.
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Which of these is not an advantage of using a Shewhart control chart with the EWMA chart?