a$)$ Draw the AON network using the below information.

b$)$ Determine the estimated duration and variance for all activities.

c$)$ Compute ES$,$ EF$,$ LS$,$ and LF for all activities.

d$)$ Determine the estimated total duration of the project and the critical path.

e$)$ Draw a Gantt chart also.

$\backslash$table$[[$Activity$,\backslash$table$[[$Optimistic$],[$Time $($O$)]],\backslash$table$[[$Most Likely$],[$Time $($M$)]],\backslash$table$[[$Pessimistic$],[$Time $($P$)]],$Predecessors$],[$A Research,$2,4,6,-],[$B Creating Slides,$3,5,7,$A$],[$C Practicing Present.,$1,2,3,$B$],[$D Revising Slides $1,3,5,$B$,],[$E Finalizing Content $2,4,6,$D$,],[$F Setting up Equip.,$1,2,3,$E$],[$G Technical Checks,$1,2,4,$E$],[$K Rehearsing,$2,3,5,$G$]]$

f$)$ Find the crashing cost per day.

$\backslash$table$[[$Activity$,$Normal Cost Crashing Cost Crashing duration Crashing Cost per$],[$day$($$$),]]$

SOLVE A$,$B$,$C$,$D$,$E$,$F WITH ALL STEPS PLZ