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8-14. (Nuclear plant staffing problem) South Central Utilities has just announced the August 1 opening of its second nuclear...

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8-14. (Nuclear plant staffing problem) South Central Utilities has just announced the August 1 opening of its second nuclear generator at its Baton Rouge, Louisiana, nuclear power plant. Its personnel department has been directed to determine how many nuclear technicians need to be hired and trained over the remainder of the year.;The plant currently employees 350 fully trained technicians and projects the following personnel needs;Month;Personnel Hours Needed;August;40,000;September;45,000;October;35,000;November;50,000;December;45,000;By Louisiana law, a reactor employee can actually work no more than 130 hours per month. (Slightly over 1 hour per day is used for check-in and check-out, recordkeeping, and daily radiation health scans.) Policy at South Central Utilities also dictates that layoffs are not acceptable in those months when the nuclear plant is overstaffed. So, if more trained employees are available than are needed in any month, each worker is still fully paid, even though he or she is not required to work the 130 hours.;Training new employees in an important and costly procedure. It takes one month of one-on-one classroom instruction before a new technician is permitted to work alone in the reactor facility. Therefore, South Central must hire trainees one month before they are actually needed. Each trainee teams up with a skilled nuclear technician and requires 90 hours of that employee?s time, meaning that 90 hours less of the technician?s time are available that month for actual reactor work.;Personnel department records indicate a turnover rate of trained technicians at 5% per month. In other words, about 5% of the skilled employees at the start of any month resign by the end of that month. A trained technician earns an average monthly salary of $2,000 (regardless of the number of hours worked, as noted earlier). Trainees are paid $900 during their one month of instruction.;A) Formulate this staffing problem using LP.;B) Solve the problem. How many trainees must begin each month?

 

Paper#74512 | Written in 18-Jul-2015

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