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Activity durations are normally estimated in an intuitive and subjective way. All of the following will improve duration accuracy EXCEPT
Correct Answer: A
Activity Duration Estimation Techniques: * Accurate estimation methods include detailed breakdowns, using experienced personnel, and analyzing specific factors for individual activities. * Relying on gross estimates or averages (as in A) introduces significant inaccuracies. PSP Study Guide References: * The PSP Study Guide emphasizes the importance of detailed and specific input to improve estimation accuracy. Analysis for Selection: * Option A: Incorrect method, as averages do not provide accurate results for individual activities. * Option B: Misguided suggestion; focusing independently on activities without logic paths introduces potential errors. * Option C: Correct. Dividing activities enhances detail and estimation precision. * Option D: Correct. Involving the executors ensures realistic and experienced-based durations. Conclusion: The correct answer is A, as using gross estimates is not an effective method for improving accuracy.