Section: Monitoring and Controlling

You calculate the critical path by adding together the durations of all the tasks with zero float. The critical path can be compressed using crashing techniques.

The best answer to this question is "It determines communication needs and methods for updating stakeholders.". Stakeholder analysis is a tool and technique of Scope Definition used to determine and document the needs, wants, and expectations of stakeholders and prioritize and quantify those needs into project requirements.

Explanation/Reference:
Explanation:
Attribute sampling determines whether a result does or does not conform. Variables sampling rates a result on a continuous scale to measure the degree of conformity.