A production manager at a Contour Manufacturing planthas inspected the number of defective plastic molds in 5 randomsamples of 20 observations each. Following are the number ofdefective molds found in each sample:SampleNumber ofDefectsNumber ofObservationsin Sample11202220322041205020Total 6 100Construct a 3-sigma control chart (z 3) with this information

A production manager at a Contour Manufacturing planthas inspected the number of defective plastic molds in 5 randomsamples of 20 observations each. Following are the number ofdefective molds found in each sample:SampleNumber ofDefectsNumber ofObservationsin Sample11202220322041205020Total 6 100Construct a 3-sigma control chart (z 3) with this information

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter14: Data Mining

Section14.2: Classification Methods

Problem 11P

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Concept explainers

Statistical Process Control

The use of statistical methods to observe and manage a process to make sure that it operates at its full potential and thus produce a confirming product is called Statistical Process Control.

Question

A production manager at a Contour Manufacturing plant
has inspected the number of defective plastic molds in 5 random
samples of 20 observations each. Following are the number of
defective molds found in each sample:
Sample
Number of
Defects
Number of
Observations
in Sample
1120
2220
3220
4120
5020
Total 6 100
Construct a 3-sigma control chart (z 3) with this information

Management principles, work activities, and methods involved in the production of a product. Topics covered under production management are job production, batch production, mass production, and recent trends.

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