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 2

B A 5

C NONE 2

D C 4

E A 5

F A 5

G C 7

H C 2

I D, E 6

J B 4

K B 5

L F, G, I, K 5

M H, L 6

N H, L 3

O K 3

P K 5

Q K 5

R N, O 2