Requested daily quantity for a product is 500 units (defect free). The production times (given as normal time) of the two operations respectively are as follows: Operation a= 2min/unit; Operation b= 10min/unit. The defect rates is given as 20% for Operation a and 30% for Operation b in serial. Workers assigned to these operations will accomplish the conversions. The performance of the individual employee are expected to be 90%. There are two scenarios: Scenario I: With Rework Although the defect rates are given, no product is permitted to leave the plant with any quality defects. Accordingly, all of the defects must be corrected, and the average time to correct the defect is 150% of the initial conversion time. The same work teams will accomplish this rework. The plant is run as a one-shift 8 hr/day (meal break of 30 min (unpaid); Short Breaks 2*15min; downtime=45min) operation. Scenario II:Without Rework There is no rework. The plant is run as a one-shift 8 hr/day (meal break of 30 min (unpaid); Short Breaks 2*15min; downtime=45min) operation.

QUESTION 1a) Requested daily quantity for a product is 500 units (defect free). The production times (given as normal time) of the two operations respectively are as follows: Operation a= 2min/unit; Operation b= 10min/ unit. The defect rates is given as 20% for Operation a and 30% for Operation b in serial. Workers assigned to these operations will accomplish the conversions. The performance of the individual employee are expected to be 90%. There are two scenarios: Scenario I: With Rework Although the defect rates are given, no product is permitted to leave the plant with any quality defects. Accordingly, all of the defects must be corrected, and the average time to correct the defect is 150% of the initial conversion time. The same work teams will accomplish this rework. The plant is run as a one-shift 8hr/ day (meal break of 30min (unpaid); Short Breaks 2*15min; downtime =45min ) operation. Scenario II:Without Rework There is no rework. The plant is run as a one-shift 8hr/ day (meal break of 30min (unpaid); Short Breaks 215min; downtime =45min ) operation