PMI Exam PMI-SP Topic 7 Question 1 Discussion

An analogous estimate is a form of expert judgment because it relies on historical information. The historical information, assuming that it is accurate, serves as the conduit to the expert that created the historical information. Answer option C is incorrect. A bottom-up estimate creates an activity duration estimate for each work package in the WBS. Answer option A is incorrect. Parametric estimating uses a parameter, such as 10 hours per fixture installation, as a base to predict the duration of the project. Answer option D is incorrect. A definitive estimate, also known as a bottom- up estimate, accounts for the cost of each work package.