Inferential statistics models to relate the rejections of an engine cold testing and the machining defects in camshaft assembly bores

In the manufacturing industry it is of great importance to reduce machining deviations as soon possible avoid cost associated with reworks. The definition mathematical models that predict future errors in components combustion engines, a way helps save time and money process.
 This paper proposes analysis establishment correlations between cylinder heads rejections an engine cold testing automotive company. To determine relationships, sample engines were measured period two months using inferential statistics, statistical established. above was order ensure product quality implement methodology company for problem solving.