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Homework - Set I

Items

  1. Right click here and use the SaveTargetAs option to download my Excel worksheet, R50425e.xls (31KB). Save it on your H: drive here at SJU or on your hard drive at home.  Then modify it to solve Problem 4-25 on page 163.  This problem concerns a bank drive-thru window. Determine X and the Sample Range for samples 2 thru 12 by copying the formulas for Sample 1. Then answer the following questions.
    1. What are the upper and lower control limits for the process mean?
    2. What are the upper and lower control limits for the process range?
    3. Is the process mean in control? Explain.
    4. Is the process range in control? Explain.
  2. The Solution workbook to this problem was revised 2006Sep16 7:00pm.
    Additional Problem - You are manager of a group of financial analysts, who provide investment services. The analysts use data on 10,000 financial products updated monthly by your firm’s research department. You and the manager of the research department have agreed to use Acceptance Sampling with AQL = 0.0001, a = .05, LTPD = .0050, and b = 0.10.
    1. Right click here and use the SaveTargetAs option to download my Excel workbook, R504AccSample.xls.
    2. Use the SamplePlan worksheet of this workbook to determine the sampling plan (n and c).  Print the worksheet.
    3. You wish that the Average Outgoing Quality Limit to be less than 0.001.  Click on the AvgOutgoingQ worksheet.  Print the worksheet.  From the graph, estimate the Average Outgoing Quality Limit.  Does this plan satisfy this condition?  Explain.
  3. Problem 5-7, page 214. For part b, add the least number of identical backup components to increase EMT system reliability to at least 0.93.
  4. Chapter 6 - Case Problem 6.3 - Streamlining the Refinancing Process - page 254.
    1. Right click here to download my Excel worksheet, R506rfe.xls (40KB). Use it to create a process flowchart to document your recommendations.
       M        W        H     
       B     G     I
  5. Problem 7-4, page 286. Use the department store layout given to the right. Determine the total nonadjacent movement.
  6. Problem 7-22 (slight modification)
    1. Construct the Precedence Diagram. Calculate cycle time.
    2. Use the heuristic procedure discussed in class (largest time) to assign tasks to work stations. Show the arrangement of work stations.
    3. Is the solution optimal? Explain.
    4. How many insurance claims can actually be processed per day?
  7. Solve Problem S7-1, page 306, manually using the Factor Rating Technique presented in class to determine the best site for a new clothing store.
  8. Solve the learning curve Problem 8-6 (modified), page 337.
    1. Use an order size of 50, not 120.
    2. Right click here and use SaveTargetAs option to download my Excel worksheet, R50806.xls (73KB). Use it to determine the total time to produce all 50 PCs. Change the values of Y1 and a - the learning fraction.
    3. Determine how many weeks it will take PM Computer Services to complete the order.
  9. Solve the time study Problem S8-4 a only, (do not do part b), page 353.
    Right click here and use SaveTargetAs option to download my Excel worksheet, R508S4e.xls (47KB)    . Use it to solve the problem.
  10. Solve Problem 9-8, page 398, manually to determine the CPM information for the marketing firm. Do not do part a.
    1. Determine the earliest start and finish times for each activity (forward pass).
    2. Determine the latest start and finish times for each activity (backward pass).
    3. Determine the slack time for each activity.
    4. What is the critical path?
    11.
  11. Submit your modified version of the ClassPartAI.doc file containing the two CPAIs for Ch 3 or 4, and Ch 5, 6 or 7.
    12.

Requirements
Verbal: Be prepared to present your solution any class after the Item is assigned.  For computerized problems, bring solution printout and disk to demo solution on the PC to the class.

At the professor's discretion, the class may be requested to submit their solutions during the first 2 minutes of class. After review by professor, students will volunteer, and one will be selected for presentation.  While there is no magic formula to determine your Presentation of HW grade, some typical scenarios are:
          0% - submit no verbal HW when requested,
        50% - submit all verbal HW when requested, never volunteer,
      100% - submit all verbal HW when requested, always volunteer.
(If you wish, you may think of these as take-home quizzes.)

Written: This homework set is due at the start of the midterm exam.  It is to be neat and professional looking. As a result, your solutions must show all work, not just the answer. An additional cover or binding is not required nor desired, but the problem set is to be stapled (not paper clipped) together as one unit, in sequential order. If not, penalty is 10%. No photocopies. Each student is to submit their own work (If not, grade on homework is zero).  An additional 20% may be deducted for sloppiness and/or poor English.  Each problem solved with POM for Windows is to have the problem number and <Your name> in the title. If not, penalty is 10% for each problem. Do not submit any of the cover pages from the micro lab printers. The penalty is 10% for each cover page submitted. (Save the trees.)

Late submission penalty is 20% for each class late. Submission after the final exam receives zero credit. A sample of the problems will be used for grading. Submit in class. Do not leave in my mailbox, because it is not secure.
                                   (This page was lasted edited on September 18, 2006 .)