Given there are five (05) sample taken. The sample means (X-bar) are; 15.36,14.61,16.36,20.28, and 15.77 respectively. Also, the corresponding ranges are; 10.79, 8.37, 2.81,8.17, and 3.31 respectively. If the upper control limit for X-bar chart is 21.36, what should be the most appropriate the sample size? Select one: O a. 2 tion O b. None is correct Oc3 d. 4 e.5 A manufacturer is designing a product layout for a new product production. It plans to use a production line for 8 hours per day in order to meet forecasted demand of 100 units per day. The product requires 7 tasks in total. These tasks are namely, A, B, C, D, E, F, and respectively. Task A does not have any predecessor to start. To start Task B, it requires Task A to be completed. Starting tasks C needs, the task B to be completed. Also, starting task D needed task B to be completed. Task E can only start upon completion of Task C. Whereas starting task F needs the completion of both the tasks D and E. Finally, starting task G needed, task Fto be completed. The processing times for tasks, A, B, C, D, E, F, and G are 2.8, 2.1, 0.9, 1.0, 1.2, 1.8, are 4.7 minutes respectively. Applying the most following tasks rule for balancing the assembly line, with ties broken according to longest task time first, the tasks that will be assigned to the FIRST workstation are Select one: O a. A, B, and O b. AB O c A only d. None is the correct