New PMP Question & Answers with explanation

Which process group corresponds to the “do” part of the plan-do-check-act cycle?
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Sandra is managing an ERP system deployment project. Due to the complexity of the project and the number of project stakeholders involved, she decides to use a multi-criteria decision analysis for reviewing all change requests. What should be her first step in establishing this?
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You work at a software company that authors Material Safety Data Sheets (MSDS) for chemical companies. Prior to releasing the MSDS to the company, you have created a list of items for review to ensure they appear in the document. These items include chemical name, CAS#, protection required, what to do in an emergency, etc. This list is an example of what type of tool?
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Which of the following is NOT a valid project schedule presentation format:
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Andy is currently working for ABC Contractors as a quality control manager for a railway track construction project. National Railways awarded this cost-plus construction contract to ABC Contractors a few months ago. As a contractual requirement, ABC Contractors has to submit each completed deliverable for client acceptance. Reviewing project data, Andy found that the current submission rejection rate is 22 percent. He conducts a root cause analysis and submits his findings along with construction process improvement recommendations to the project director. In this scenario, Andy’s report is an example of:
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