QUESTION $1$

$10$ points

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Plastomer Inc. specializes in the manufacture of high$-$grade plastic film used to wrap food products. Film is rejected and scrapped for a variety of reasons $($e$.$g$.,$ opacity, high carbon content, incorrect thickness, scratches, etc.$).$ During the past month, management collected data on the types of rejects and the amount of scrap generated by each type. The following table presents the results.

A$.[8$ points$]$ Draw a Pareto chart to identify the "vital few" failure types management should attempt to eliminate first.

B$.[2$ points$]$ Explain, on what basis, you have identified the "vital few" failure types in Part A$.$