DELTA PLASTICS B

Delta Plastics B

Delta Plastics B

3-Sigma Control Chart

I tried to put the statistics together to have an overall perspective of the defects since most of them fall in the category of attributes rather than variables. I then took into consideration the 20 days as the period of observation rather than the four weeks. A P-chart methodology would rightly describe the products presented as good or bad because it is not a quick fix quality management system. After developing control limits with control P-charts to be able to understand the overall proportion of defects, I noticed curiously that both processes seem to be in control whereas from a first glance at the figures of the defects of the two materials, one has the impression that the new material is completely out of place for any serious business venture.

Our problem was to determine whether there is a major shift in the process that is resulting in the alteration of that process. When we consider individual items, as for example, the cracks or the air bubbles, the process appears not to be in control. These particular defects virtually double with production from the new material. This is the source of the trauma that Jose is now experiencing. In the final analysis, we can conclude that the company finds itself at a crossroads without any sense of direction. From the outset, they wanted to position the company strategically in the market at the detriment of their competitors. That now is far from being the case. They would have to begin all over again with the research on the new material or get contented with the standard version and face the competition.

Discuss whether or not both materials are equally subject to defects

Both materials are equally subject to defects but there are significant ...