Activity a m b Immediate Predecessor$($s$)$Activity a m b Immediate Predecessor$($s$)$ provided below

A M B

A$.579$

B$.225$

C$.777$

D$.51011$

E$.1818$

F$.258$

G$.359$

H$.338$

I. $369$

J$.268$

K$.6811$

L$.158$

M$.123$

N$.5810$

A$)$The expected completion time of the project $=\_\_\_$days $($round your response to two decimal places$).$

B$)$The activities that represent the project's critical path are $\_\_\_\_\_\_\_\_\_\_\_.$

C$)$If the time to complete the activities on the critical path is normally distributed, then the probability that the critical path will be finished in $53$days or less $=\_\_\_($round your response to two decimal places$).$

D$)$Number of days that would result in $99\%$probability of completion $=\_\_\_$days $($round your response to two decimal places$).$