The following represents a project that should be scheduled using G$.$

$\backslash$table$[[,,$TIMES $($DAYS$)],[,$IMMEDIATE,,,$],[$ACTIVITY PREDECESSORS,$a,m,b,],[$A$,-,1,2,6],[$B$,-,1,2,7],[$C$,$A$,2,2,11],[$D$,$A$,1,8,9],[$E$,$B$,1,2,3],[$F$,$C$,$ D$,3,4,11],[$G$,$D$,$ E$,1,3,11],[$H$,$F$,$ G$,2,3,11]]$

b$.$ What is the critical path?

A$-$C$-$F$-$H

A$-$D$-$F$-$H

A$-$D$-$G$-$H

B$-$E$-$G$-$H

c$.$ What is the expected project completion time? $($Do not round intermediate calculations. Round your answer to $3$ decimal places.$)$

Project completion time days

d$.$ What is the probability of completing this project within $19$ days? $($Use Excel's NORMSDIST$()$ function to find the correct probability for your computed $Z-$value. Do not round intermediate calculations. Round $"z"$ value to $2$ decimal places and final answer to $4$ decimal places.$)$