Final answer:
The action that would not result in determining an unbiased project schedule is relying on project buffer strategies since it manages unforeseen delays but does not remove biases in schedule estimates. The PERT and Monte-Carlo methods use statistical analysis to provide a more objective schedule.
Step-by-step explanation:
Out of the options given, the action that would not result in determining an unbiased project schedule is B. Relying on project buffer strategies. This approach primarily aims at absorbing the unforeseen delays within a project's timeline but doesn't actually eliminate the inherent biases that could be present in the schedule estimates.
The other options such as Classic PERT model and Monte-Carlo simulation model are statistical tools designed to analyze and take into consideration uncertainties, thereby producing a more unbiased project schedule. Those models help in predicting the probabilities of different completion times based on the variability of task durations. The key is that they use randomness or probability to assess variations in schedule estimates, which can help in creating a more accurate and unbiased schedule.