$13.$ Estimating a task duration by extrapolating from one or more similar activities completed in the past is called A$.$ Parametric estimating. B$.$ Estimating by extension.C$.$ History based estimating.D$.$ Analogous estimating$14.$ A change control board is A$.$ A formally constituted group of stakeholders responsible for minimizing the number of approved changes, with all decisions and recommendations being recorded. B$.$ A formally constituted group of stakeholders responsible for reviewing, evaluating, approving, delaying, or rejecting changes to the project, with all decisions and recommendations being recorded.C$.$ Functionally equivalent to a project steering committee. D$.$ Any group of stakeholders that meets to review or approve changes$\mathrm{.}15.$ The sequence of activities that cannot be delayed during the project is referred to as the: A$.$ Critical pathB. Master scheduleC. Slack lineD. Action plan$16.$ Cost of changes in requirements tends to: A$.$ Increase as the project starts up and progresses.B$.$ Decrease as the project starts up and progresses.C$.$ Increase or decrease depending on the scope of the change. D$.$ Always require the project sponsor's approval$\mathrm{.}17.$ The critical path in a schedule network is the path that: A$.$ Takes the longest time to complete. B$.$ Must be done before any other tasks. C$.$ Allows some flexibility in scheduling a start time.D$.$ Is not affected by schedule slippage$\mathrm{.}18.$ All the following are common characteristics of project life cycle descriptions: A$.$ Cost and staffing levels are low at the start, higher towards the end and drop rapidly as the project ends. B$.$ Risk and uncertainty are highest at the end of the project.Test$3$