A: Site Selection and Acquisition

Duration: $10$ weeks

Optimistic: $8$ weeks

Most Likely: $10$ weeks

Pessimistic: $12$ weeks

B: Design and Planning

Duration: $12$ weeks

Optimistic: $10$ weeks

Most Likely: $12$ weeks

Pessimistic: $14$ weeks

Predecessors: A

C: Obtaining Necessary Permits

Duration: $8$ weeks

Optimistic: $6$ weeks

Most Likely: $8$ weeks

Pessimistic: $10$ weeks

Predecessors: B

D: Hiring Contractors and Suppliers

Duration: $4$ weeks

Optimistic: $3$ weeks

Most Likely: $4$ weeks

Pessimistic: $5$ weeks

Predecessors: B

E: Excavation and Grading

Duration: $6$ weeks

Optimistic: $4$ weeks

Most Likely: $6$ weeks

Pessimistic: $8$ weeks

Predecessors: C$,$ D

F: Foundation and Framing

Duration: $10$ weeks

Optimistic: $8$ weeks

Most Likely: $10$ weeks

Pessimistic: $12$ weeks

Predecessors: E

G: Mechanical, Electrical, and Plumbing $($MEP$)$

Duration: $8$ weeks

Optimistic: $6$ weeks

Most Likely: $8$ weeks

Pessimistic: $10$ weeks

Predecessors: F

H: Exterior Finishes and Landscaping

Duration: $6$ weeks

Optimistic: $4$ weeks

Most Likely: $6$ weeks

Pessimistic: $8$ weeks

Predecessors: G

I: Interior Finishes and Equipment Installation

Duration: $10$ weeks

Optimistic: $8$ weeks

Most Likely: $10$ weeks

Pessimistic: $12$ weeks

Predecessors: G

J: Final Inspections and Certificate of Occupancy

Duration: $4$ weeks

Optimistic: $3$ weeks

Most Likely: $4$ weeks

Pessimistic: $5$ weeks

Predecessors: H$,$ I

draw a network for this project