Della works as a project manager for BlueWell Inc. She has asked her assistant Beth to provide activity duration estimate for an activity. Beth provides Della the following estimate chart: What will…

Question

Options

• A19
• B24
• C29
• D46

• A
  4% (2)
• B
  8% (4)
• C
  71% (36)
• D
  18% (9)

Explanation

A three-point estimate records the optimistic, most likely, and the pessimistic duration and then records an average for the predicted duration. Three-point estimate is a way to enhance the accuracy of activity duration estimates. This concept is originated with the Program Evaluation and Review Technique (PERT). PERT charts the following three estimates: Most likely (TM): The duration of activity based on realistic factors such as resources assigned, interruptions, etc. Optimistic (TO): The activity duration based on the best-case scenario Pessimistic (TP): The activity duration based on the worst-case scenario The expected (TE) activity duration is a weighted average of these three estimates: TE = (TO + 4TM + TP) / 6 Duration estimates based on the above equations (sometimes simple average of the three estimates is also used) provide TE = ( 24 + 28*4 + 36) / 6 Answer options B, D, and A are incorrect. These are not the valid answers for this question.

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