8. If we hire two Sterle Processing Technologists (SPTs). The cost is 40,000 per year per SPT. We can reduce the optimistic, most likely, and pessimistic times of activity I to 3, 8, and 13 minutes with respectively. Resolve the PERT and present all the information in Q3. What is the mean ORTOT reduction? (5 points)

Activity	Personnel	Description	Immediate Predecessor	Optimistic	Most Likely	Pessimistic	mean	sigma	sigma^2
A	Anesthesiologist	Transport Patient 1 to PACU	N/A	2	2	2	2	0	0
B	Anesthesiologist	Clean up and prepare for the next surgery	A	29	37	57	39	4.666666667	21.77777778
C	Surgeon	Surgeon preparation for next surgery	A	7	15	35	17	4.666666667	21.77777778
D	Surgery RN	RN preparation for next surgery	A	20	32	42	31.66666667	3.666666667	13.44444444
E	Scrub Tech	Scrub Tech break down tasks	A	5	10	15	10	1.666666667	2.777777778
F	Scrub Tech	Sterile tasks	G, E	12	30	37	28.16666667	4.166666667	17.36111111
G	Orderly Team	Orderly task	A	3	7	15	7.666666667	2	4
H	Anesthesia Tech	Anesthesia tasks for next surgery	A	15	27	35	26.33333333	3.333333333	11.11111111
I	Pre-op RN	Preop checklist for patient 2	B, C, D, F	3	8	13	8	1.666666667	2.777777778
J	Surgeon and Surgery RN	Transport patient 2 to OR	I	2	2	2	2	0	0