A process that produces titanium forgings for automobile turbocharger wheels
A process that produces titanium forgings for automobile turbocharger wheels is to be controlled through the use of a fraction nonconforming chart. Initially, one sample of size 150 is taken each day for 20 days, and the results shown in Table 6E.4 are observed.
a. Establish a control chart to monitor future production.
b. What is the smallest sample size that could be used for this process and still give a positive lower control limit on the chart?
Membership TRY NOW
  • Access to 800,000+ Textbook Solutions
  • Ask any question from 24/7 available
    Tutors
  • Live Video Consultation with Tutors
  • 50,000+ Answers by Tutors
OR
Relevant Tutors available to help