Use the information from the table to estimate the mean and the standard deviation of the ORTOT of each column of numbers. Present your network diagram and the earliest and latest starting times as well as the earliest and latest finishing times of each activity. What is the critical path? What is your finding from the PERT analysis?

Activity Personnel Description Optimistic Most Likely Pessimistic Immediate Predecessor NA Anesthesiologist 2 2 2 B Anesthesiologist A 29 37 57 Surgeon A 7 15 35 D Surgery RN A 20 32 42 | Transport Patient 1 to PACU Clean up and prepare for the next surgery Surgeon preparation for next surgery RN preparation for next surgery Scrub Tech break down tasks Sterile tasks Orderly task Anesthesia tasks for next surgery Preop checklist for patient 2 Transport patient 2 to OR E Scrub Tech A 5 10 15 F G H Scrub Tech Orderly Team Anesthesia Tech GE A A 12 3 15 30 7 27 37 15 35 | I Pre-op RN B,C,D,F 5 10 20 J I 2 2 2 Surgeon and Surgery RN