7 When an accounting firm audits a corporation, the first phase of the audit involves obtaining “knowledge of the business.” This phase of the audit requires the activities in Table 23.

a Draw the project network and determine the critical path for the network, the total float for each activity, and the free float for each activity. Also set up the LP that can be used to find the project’s critical path b Assume that the project must be completed in 30 days. The duration of each activity can be reduced by incurring the costs shown in Table 24. Formulate an LP that can be used to minimize the cost of meeting the project deadline.