4. Eighty units of end item E are needed at the beginning of week 6. Three cases ( 30 units per case) of J have been ordered and one case is scheduled to arrive in week 3, one in week 4 , and one in week 5 . Note: J must be ordered by the case, and B must be produced in multiples of 120 units. There are 60 units of B and 20 units of J now on hand. Lead times are two weeks each for E and B, and one week for J. a. Prepare a material requirements plan for component J. b. Suppose that in week 4 the quantity of E needed is changed from 80 to 70 . The planned-order releases through week 3 have all been executed. How many more Bs and Js will be on hand in week 6 ? Chapter 13, problem 4. part a When you prepare a material requirements plan for component J, in which weeks do you need to release planned-order for part J ? 1 2 3 4 5 6 QUESTION 15 Chaptor 13, problem 4, part a When you prepore a material requiternents plan for component J, how many pleces of part J do you need to release from week 1 to 6 ? Chapter 13, problem 4, part b. Suppose that in week 4 the quantity of E needed is changed from 80 to 70 . The planned-order releases through week 3 have all been executed. How many more Bs will be on hand in week 6 ? QUESTION 17 Chapter 13, problem 4, part b. Suppose that in week 4 the quantity of E needed is changed from 80 to 70 . The planned-order releases through week 3 . have all been executed. How many more 35 will be on hand in week 67