Question: . QUESTION 1 Requested daily quantity for a product is 375 units (defect free). The production times (given as normal time) of the three operations
QUESTION 1 Requested daily quantity for a product is 375 units (defect free). The production times (given as normal time) of the three operations respectively are as follows: Operation a= 2min; Operation b= 3min; and Operation c= 5min. The defect rates is given as 10%; 20%; 5% for each station in serial. Workers assigned to these operations will accomplish the conversions. The number of workers in the department is limited to 10. 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 (Example for a=2min repair of a=2*1,5=3min). The same work teams will accomplish this rework. The plant is run as a one-shift 9 hr/day (meal break of 30 min (unpaid); Short Breaks 2*15min; downtime=35min) operation. Don't forget: The number of workers in the department is limited to 10. The performance of employees 1sPerformances1,25 (because of qualified workforce and motivational effect of wage support). A performance below 100% or above 125% is not desired in determining the required number of workers. Scenario II:Without Rework There is no rework. The plant is run as a one-shift 9 hr/day (meal break of 30 min (unpaid); Short Breaks 2*15min; downtime=35min) operation. Don't forget: The number of workers in the department is limited to 10. The performance of employees 1
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