Question
2. A low-volume production supervisor keeps track of the yields, by month, for products make at their workstation. About 100 parts are made monthly, each
2. A low-volume production supervisor keeps track of the yields, by month, for products make at their workstation. About 100 parts are made monthly, each is inspected for critical nonconformances. The 100% inspection plan is necessary because nonconformances in the field can cause great harm to users. The inspection system can be considered accurate and not prone to error. Each month, the yield is calculated as the ratio of the number of products without nonconformances and the number of parts made. On a monthly basis, starting each January, a quality analyst displays the monthly yield and the year to date (YTD) yield, as shown below. The quality analyst leaves it up to the production supervisor to evaluate the display and take appropriate action. Critique this approach. Explain its limitations. If is not effective, why not and recommend a better approach (in detail with example display)?