You are creating a customer database for your company : Draw a project network given the information below. Complete the forward and backward pass. Compute activity slack, and identify the critical path. How long will this project fake? How sensitive is the network schedule? Calculate the free slack and total slack for all noncritical activities. Description Time days $)$ Predecessor $2112$ Systems design Subsystem A design Subsystem design Subsystem C design Program A Program B Program C Subsystem A test Subsystem B test Subsystem C test Integration Integration test None A A A B D E $221$ J $12$ H$,,$ J $1$