A quality control effort is being attempted for a process where large steel plates are being manufactured
Question:
A quality control effort is being attempted for a process where large steel plates are being manufactured and surface defects are of concern. The goal is to set up a quality control chart for the number of defects per plate. The data are given next page. Set up the appropriate control chart, using this sample information. Does the process appear to be incontrol?
Transcribed Image Text:
Number of Sample Defective Sample Defective Items 4 5. Number of Sample Defective Sample Defective Items 4 2 Number of Number of Plot Plot Plot Items 4 3 Plot 11 Items 16 12 13 14 2 8. 18 19 20 1. 1. 10 15 4213o
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Related Book For
Probability & Statistics For Engineers & Scientists
ISBN: 9780130415295
7th Edition
Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying
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