Based on the chart you selected calculate the, Process average. You have recentl

Question

Based on the chart you selected calculate the, Process average.

You have recently graduated from Rutgers University and have accepted a position as the operations Manager as a local granite kitchen counter company. Your first assignment is to evaluate the raw from a new upstream supplier in order to determine if the quality of their process is in-control or out-of-control. Each slab of granite is allowed to exhibit some minor surface imperfections. However, too many surface imperfections and the quality of the product comes into question and makes it difficult to design and fabricate the counter tops. During your you first visit the supplier's facility and make the following observations: The supplier stacks the granite slabs on top of each other with no spacers or padding during the transportation process to your location The granite cutting equipment appears old and worn and not well maintained. The personnel performing the polishing operation are all new to the organization. Having taken the operations management course you immediately recognize this as an application for using SPC techniques in order to monitor the quality of the supplier's granite slabs. You then collect data on the next granite shipment that is received. You are able to obtain the following data points from the next twenty granite slabs that are delivered:

Explanation / Answer

The Poisson average is the sample average, and hence, the mean here across the 20 slabs is average of

12, 32,21,25,18,10,37,26,15,23,25,19,17,19,21,20,31,23,23,18 which is 21.75.

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