New PMP Question & Answers with explanation

A project manager needs to assess quality on the project. To do so, he wants to measure the height of each table produced. However, that would be too expensive. In this case, it would be best to use:
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The new software installation project is in progress. The project manager is working with the quality department to improve everyone's confidence that the project will satisfy the quality standards. Which of the following must they have before they start this process?
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Measuring the height of one of the tables manufactured by your company to determine if it meets your quality standards is an example of measuring:
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Seven nonrandom data points that are still within the upper or lower control limit of a control chart are:
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The team is working on a process improvement project for the organization. Similar projects have been completed in the past, although all of the team members on this project are new to the organization. The project manager has taken advantage of historical records from the previous projects, and is making use of templates and other documentation found in those records, management wants to look at how project is doing, as compared to past projects. To make a valid judgment, management should compare this project to:
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