The following information has been gathered for a project to install a new machine lathe at Diamond Manufacturing, Inc.

$\backslash$table$[[$Activity$,$Activity Time $($wks$),$Immediate Predecessor$($s$)],[$A$,4,-],[$B$,7,$A$],[$C$,9,$B$],[$D$,3,$B$],[$E$,14,$D$],[$F$,10,$C$,$ D$],[$G$,11,$F$,$ E$]]$

a$.$ Draw the network diagram.

b$.$ Calculate the slack for each activity and determine the critical path. How long will the project take?

$6.$ Consider the following information for a project to add a drive$-$through window at Crestview Bank.