New PMP Question & Answers with explanation

Matrix diagrams, affinity diagrams, and flowcharts are all examples of?
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Generally, where should control limits be located on a control chart?
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What is a likely result of not following the approved processes to do the work?
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To what does the following definition refer? "the point where the benefits or revenue to be received from improving quality equals the incremental cost to achieve that quality:'
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The results of another project have just been posted. Substantial rework will be required in order to meet the project requirement. Because the cost is so high, effective immediately, the project management office will be requiring all project to do statistical sampling. What is the project management office concentrating its efforts on improving?
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