Question

An x chart is to be designed for a quality characteristic assumed to be normal with a standard of 4.
Specifications on the quality characteristic are 800 ± 20. The control chart is to be designed so that if the fraction nonconforming is 1%, the probability of a point falling inside the control limits will be 0.90. The sample size is n = 4. What are the control limits and center line for the chart?


$1.99
Sales0
Views14
Comments0
  • CreatedNovember 06, 2015
  • Files Included
Post your question
5000