Please completer following question using excel and VLOOKUP.

Project Management. A project has four activities $($A$,$ B$,$ C$,$ and D$)$ that must be performe

sequentially. The probability distributions for the time required to complete each of the activities

are as follows:

a$.$ Construct a spreadsheet simulation model to estimate the average length of the project and

the standard deviation of the project length.

b$.$ According to your simulation model, what is the estimated probability that the project will be

completed in $35$ weeks or less?

$($Hint: The project time includes the summation of all activity times; use VLOOKUP function in