A marketing firm is planning to conduct a survey of a segment of the potential product audience for one of its customers. The planning process for preparing to conduct the survey consists of six activities, with precedence relationships and activity time estimates as follows:

Part (a)Construct the AOA network corresponding to this project (on paper or in Excel).

Part (b)Formulate the linear programming model for this problem and find the earliest event time for each activity as well as the total duration of the project.