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Two persons X and Y work on a two-station assembly line. The distributions of activity times at their stations are TABLE 13.6 10 Time in seconds Time frequency for X Time frequency for Y Cije 4 2 20 7 3 30 10 6 40 15 8 50 35 12 60 18 9 70 8 7 80 3 3 (a) Simulate operation of the line for eight items, (6) Assuming Y must wait until X completes the first item before starting work, will he have ait to process any of the other seven items ? What is the average waiting time of items for Y. The following random numbers: For X 83, 70, 02, 12, 59, 46, 54 and 03. For Y 51, 99, 84, 81, 15, 36, 12 and 54. DES C) Determine the inventory of items between the two stations, 3) What is the average production rate