Your project consists of framing two walls, then install $4$ windows $(2$ windows per wall$)$ and paint the walls.

Because the windows are similar, the installation time declines with repetition $($learning curve effect$).$

If you know it will take your crew $5$ hours to install the first window and $4$ hours to install the second window, find the project duration.

Note: First calculate $"s"$ using this formula $S=\frac{log10(T)-log10(K)}{log10(N)}$

Next, calculate T$3$ & T$4$ using this formula $>>$

$T_N=K(N^S)$

$T_N=$ time for the $N$ th installation

$K=$ time for the first installation

$S=$

Conduct a forward pass and a backward pass and find the critical activities for the following network diagram.

Next, calculate the Free Float for the following activities:

Task B

Task C $$ Task D