PMI-SP Duration Estimating 5

Question 1

A project uses parametric estimating and historical data shows an average cost of $500 and a duration of 3 days per deliverable unit. If the project scope includes 40 units, what is the estimated total duration?

Accepted Answer

120 days

Answer

Total duration = 3 days/unit × 40 units = 120 days using the parametric estimating formula.

Question 2

A project scheduler is documenting the basis of estimates. Which information is MOST important to capture in this document?

Accepted Answer

The sources, assumptions, constraints, and confidence level of each estimate

Answer

The basis of estimates documents the sources of data, assumptions made, constraints considered, and confidence levels to support transparency and future auditing.

Question 3

During a planning session, the team debates whether to use expert judgment or parametric estimating. The project involves a novel technology with no historical performance data. Which technique should be selected?

Accepted Answer

Expert judgment from experienced SMEs in the technology domain

Answer

When no historical data exists for a novel technology, expert judgment from domain SMEs is the most reliable estimating technique.

Question 4

A PMI-SP professional is analyzing a schedule where activity durations were estimated without considering the law of diminishing returns. What risk does this create?

Accepted Answer

Adding resources later will not reduce the schedule as expected

Answer

Ignoring diminishing returns means the team may expect linear duration reductions from added resources, but actual results will underperform expectations.

Question 5

Which of the following scenarios represents the CORRECT application of lag in the context of duration estimating and schedule development?

Accepted Answer

Waiting 5 days after concrete is poured before beginning the next phase

Answer

Lag represents a required waiting period between dependent activities, such as curing time after pouring concrete before the next activity can start.

(PMI-SP) PMI Scheduling Professional Practice Test

(PMI-SP) PMI Scheduling Professional Practice Test

PMI-SP Duration Estimating 5