Q$3.(14$ marks$)$: Given the following activates for construction a single story workshop project with overhead $1500$ USD for each week, the cost of contingences risk is estimated to be US $7000$ and profit was $25\%$ The contractor also spent some cost for MEP, answer the following questions:

Note: use the attached normal distribution table

$\backslash$table$[[$Activity$,$Precedence,$\backslash$table$[[$Normal Time$],[($week$)]],\backslash$table$[[$Crash Time$],[($week$)]],\backslash$table$[[$Normal Cost$],[$ S