3. You are handling a concrete dispatch operation for ABC company and evaluating the efficiency of the dispatching system (see below for the workflow). The factory prepares the concrete mix but is not released until receiving the in-bound calls from clients for concrete orders. Based on experience, the frequency of these calls is roughly 1 call per 5 hours. After the company receives the call, the concrete will be loaded and released to the site. The below table summarizes the duration for each activity: Name of station Process time/resource Concrete Prep Norm (1, 0.05); 1 prep machine; buffer size = 0 Loading Norm (0.3, 0.01); 1 loading; buffer size = 1 Delivery Norm (2,0.1); 2 trucks (1 load/truck); buffer size = 0 In-bound calls for concrete orders Preparation of Concrete Loading Delivery To avoid waste and unnecessary stock of concrete prepared. What would be the preparation rate for the concrete material based on the given information to (1) minimize the amount of material prepared and queued in the system; (2) satisfying the in-bound calls as much as possible. Develop your DES model in Axcel, analyze this scenario and write down your conclusions (45 marks). 3. You are handling a concrete dispatch operation for ABC company and evaluating the efficiency of the dispatching system (see below for the workflow). The factory prepares the concrete mix but is not released until receiving the in-bound calls from clients for concrete orders. Based on experience, the frequency of these calls is roughly 1 call per 5 hours. After the company receives the call, the concrete will be loaded and released to the site. The below table summarizes the duration for each activity: Name of station Process time/resource Concrete Prep Norm (1, 0.05); 1 prep machine; buffer size = 0 Loading Norm (0.3, 0.01); 1 loading; buffer size = 1 Delivery Norm (2,0.1); 2 trucks (1 load/truck); buffer size = 0 In-bound calls for concrete orders Preparation of Concrete Loading Delivery To avoid waste and unnecessary stock of concrete prepared. What would be the preparation rate for the concrete material based on the given information to (1) minimize the amount of material prepared and queued in the system; (2) satisfying the in-bound calls as much as possible. Develop your DES model in Axcel, analyze this scenario and write down your conclusions (45 marks)