Which stakeholder communicates with higher levels of management to gather organizational support and promote project benefits?

An IT project manager has been referred to a new, highly rated vendor that provides quality assurance professional services, The project manager plans to engage the quality assurance vendor on a new project, but their rates do not fit into what was budgeted for the project.
What should the project manager do next?

An input to the Create WBS process is a:

Clearly defined group goals are important because they _____.

The rule of seven used by quality control engineers states that if a run of seven or more samples lays on one side of the process mean, then the process is out of control. What is the probability that this condition is the result of random variations.