Question

Discuss the logic underlying the use of three-sigma limits on Shewhart control charts. How will the chart respond if narrower limits are chosen

Answer 1

Answer:

The Shewhart control charts are charts used to monitor processes and behaviours in businesses statistically to ensure they are under control. They have been known to produce superb results especially with the use of the 3-sigma limits. The use of narrower limits provides practicality in testing more scenarios, the investigation of more causes and detection of more false causes.

Explanation:

The use of the 3 sigma limits in the Shewhart control charts using narrow limits provides for better control of business enterprises by ensuring that more investigations and detection of false causes are conducted. Thes gives a much more specific range of results in practice compared to the wide range approach.