Design a PERT Chart based on the activities below and be sure to include the ECT, LAT, slack time for each node, along with the critical path.

Activity Predecessor Duration (days)

A NONE 3

B NONE 3

C NONE 2

D NONE 4

E A 6

F A 5

G A 9

H C 3

I D 6

J D 5

K B 5

L B 8

M F, H, J 6

N G 4

O I, L 3

P E 6

Q N, P 2

R N, P 5

S K 7

T K 6

U M, O, Q, R, S 4