Consider the office renovation project data in Table 7.16. A zero time estimate means that the activity could take a very small amount of time and should be treated as a numeric zero in the analysis.

TABLE 7.16 DATA FOR THE OFFICE RENOVATION PROJECT

	TIME ESTIMATES (DAYS)
Activity	Optimistic	Most Likely	Pessimistic	Immediate Predecessor(s)
START	0	0	0
A	6	10	14	START
B	0	1	2	A
C	16	20	30	A
D	3	5	7	B
E	2	3	4	D
F	7	10	13	C
G	1	2	3	D
H	0	2	4	G
I	2	2	2	C, G
J	2	3	4	I
K	0	1	2	H
L	1	2	3	J, K
FINISH	0	0	0	E, F, L

a. Based on the critical path, find the probability of completing the office renovation project by 39 days.

b. Find the date by which you would be 90 percent sure of completing the project