Problem 2. (35 points) Draw the precedence diagram for the following project. Please provide a precedence diagram with each node showing ES, EF, FF, TE, LS, and LF numbers. Please provide equations and calculations for ES, EF, Link Lags, FF, TF, LS, LF for activities C, D, E, and F. Predecessors A B/1 CSS/1 CFF/2 Activity List for Reroofing Project Activity Description Duration Days A Move in 2 B Set up scaffolds 3 C Tear off old shingles 3 D Inspect roof truss and deck 2 E Remove old shingles to recycling yard 3 F Purchase new shingles 1 G Install new shingles 5 H Clean up 3 I Move out 2 *Under Predecessors, the following notation is used: x/#: Activity x must finish # days before this activity can begin. xSS/#: The # of days after activity x starts that this activity can begin. xFF/#: This activity cannot finish until # days after x is completed. XSF/#: This activity must finish # days before x can start. G SF/2 CD G H Problem 2. (35 points) Draw the precedence diagram for the following project. Please provide a precedence diagram with each node showing ES, EF, FF, TE, LS, and LF numbers. Please provide equations and calculations for ES, EF, Link Lags, FF, TF, LS, LF for activities C, D, E, and F. Predecessors A B/1 CSS/1 CFF/2 Activity List for Reroofing Project Activity Description Duration Days A Move in 2 B Set up scaffolds 3 C Tear off old shingles 3 D Inspect roof truss and deck 2 E Remove old shingles to recycling yard 3 F Purchase new shingles 1 G Install new shingles 5 H Clean up 3 I Move out 2 *Under Predecessors, the following notation is used: x/#: Activity x must finish # days before this activity can begin. xSS/#: The # of days after activity x starts that this activity can begin. xFF/#: This activity cannot finish until # days after x is completed. XSF/#: This activity must finish # days before x can start. G SF/2 CD G H