PLS ANSWER ASAP - I REALLY NEED HELP!

Problem 3: (25 points) Use Excel and MS-Project for this problem and submit your models. A project manager (PM) generated the activities and predecessors required to rearrange the classrooms layout at a local university in order to account for social distancing. In addition, the PM gathered the time information for each activity, as shown in the accompanying table. As many workers were unreliable, the PM listed the tasks in a new contract along with their optimistic completion times, most likely completion times, and pessimistic completion times (all in days).

MBA

Activity Description	Immediate Predecessor(s)	Optimistic	Most Likely	Pessimistic
A		4	7	10
B	A	4	12	20
C	A	6	10	14
D	B	1	2	3
E	D, C	4	8	18
F	C	2	3	4
G	F	2	2	2
H	F	6	8	16
I	E, G, H	4	8	12
J	I	1	2	3

1. a) What is the expected project completion time?

2. b) What is the probability that the project takes longer than 46 days?

c) What is the number of days you recommend to be 97% confident of projects

completion?