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COB 300 Operations Test 2 (Pal) Questions and Answers 100% Pass
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COB 300 Operations Test 2 (Pal) Questions and Answers 100% Pass Phases of Quality Assurance - 1. Acceptance sampling: inspection before/after production (least progressive) 2. Process control: inspection and corrective action during production 3. Continuous improvement: quality built into the ...

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  • January 8, 2025
  • 28
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • cob 300 operations test 2 pal questions and answ

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  • COB 300
  • COB 300

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COB 300 Operations Test 2 (Pal)
Questions and Answers 100% Pass

Phases of Quality Assurance - ✔✔1. Acceptance sampling: inspection before/after production (least

progressive)


2. Process control: inspection and corrective action during production


3. Continuous improvement: quality built into the process (most progressive)


Inspection - ✔✔An appraisal activity that compares goods or services to a standard


Inspection Issues - ✔✔1. How much to inspect and how often


2. At what points in the process to inspect


3. Whether to inspect in a centralized or on-site location


4. Whether to inspect attributes or variables


Where to inspect in the process - ✔✔1. Raw materials and purchased parts


2. Finished products


3. Before a costly operation


4. Before an irreversible process


5. Before a covering process




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Emily Charlene
Lead Athor

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,2|Page


Centralized vs On-Site Inspection - ✔✔Effects on cost and level of disruption are major considerations


Centralized - ✔✔-Specialized tests that may best be completed in a lab


-More specialized testing equipment


-More favorable testing environment


On-Site Inspection - ✔✔-Quicker decisions are rendered


-Avoided introduction of extraneous factors


-Quality at the source


two basic questions concerning variability - ✔✔-Issue of Process Control


-Issue of Process Capability


Issue of process control - ✔✔Are the variations random? If nonrandom variation is present, the process is

said to be unstable.


Issue of Process Capability - ✔✔Given a stable process, is the inherent variability of the process within a

range that conforms to performance criteria?


Steps required for effective control - ✔✔-Define: What is to be controlled?


-Measure: How will measurement be accomplished?


-Compare: There must be a standard of comparison


-Evaluate: Establish a definition of out of control


-Correct: Uncover the cause of nonrandom variability and fix it


-Monitor: Verify that the problem has been eliminated



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Emily Charlene
Lead Athor

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Statistics to manage quality - ✔✔-Requires less labor (reduces costs)


-Useful when testing destroys products


Categories of statistical tools - ✔✔-Statistical process control


-Acceptance sampling


Statistical process control - ✔✔Assesses whether or not an ongoing process is preforming within

established limits


Acceptance Sampling - ✔✔Assesses the quality of parts or products after they have been produced


Statistical Process Control (SPC) - ✔✔A quantitative method for determining whether a particular process

is in or out of control


Process Variations - ✔✔-Random (common cause) variations


-Assignable (special cause) variations


Random (common cause) variation - ✔✔Natural variation in the output of a process, created by countless

minor factors


Assignable (special cause) variation - ✔✔-Variations whose source can be identified


-Easy to control/correct


Why are samples taken? - ✔✔To determine whether assignable variations are present in the output of a

process


Central Limit Theorem - ✔✔Sample means will be normally distributed no matter whatever distributions

the samples follow




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Emily Charlene
Lead Athor

©All Rights Reserved, 2025

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