Q1 LAB2subject : production and operation management please answer ASAP QUESTION 1 (WORK MEASUREMENT: STOPWATCH TIME STUDY).. 10.30 Installing mufflers at the O'Sullivan Garage inGolden, Colorado, involves five work elements. Jill O'Sullivanhas timed workers performing these tasks seven times, with theresults shown in the following table:OBSERVATIONS(MINUTES)JOB ELEMENT1 2 3 4 5 6 745 46 415²41. Select correct mufflers2. Remove old muffler68767 6 73. Weld/install new muffler 15 14 14 12 15 16 134. Check/inspect work18ª3 4 24³ 5 4 35685. Complete paperwork*Employee has lengthy conversations with boss (not job related).7 6 7PERFORMANCERATING (%)11090105100130By agreement with her workers, Jill allows a 10% fatigue factorand a 10% personal-time factor, but no time for delay. To com-pute standard time for the work operation, Jill excludes all obser-vations that appear to be unusual or nonrecurring. She does notwant an error of more than ±5%.a) What is the standard time for the task?b) How many observations are needed to assure a 95% confi-dence level? PX

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10.30 Installing mufflers at the O'Sullivan Garage in Golden, Colorado, involves five work elements. Jill O'Sullivan has timed workers performing these tasks seven times, with the results shown in the following table: OBSERVATIONS (MINUTES) JOB ELEMENT 1 2 3 4 5 6 7 4 5 4 6 4 15² 4 1. Select correct mufflers 2. Remove old muffler 6876767 3. Weld/install new muffler 15 14 14 12 15 16 13 3 4 24 5 4 3 18³ 568 7 6 7 4. Check/inspect work 5. Complete paperwork *Employee has lengthy conversations with boss (not job related). PERFORMANCE RATING (%) 110 90 105 100 130 By agreement with her workers, Jill allows a 10% fatigue factor and a 10% personal-time factor, but no time for delay. To com- pute standard time for the work operation, Jill excludes all obser- vations that appear to be unusual or nonrecurring. She does not want an error of more than 15%. a) What is the standard time for the task? b) How many observations are needed to assure a 95% confi- dence level? PX

10.30 Installing mufflers at the O'Sullivan Garage in Golden, Colorado, involves five work elements. Jill O'Sullivan has timed workers performing these tasks seven times, with the results shown in the following table: OBSERVATIONS (MINUTES) JOB ELEMENT 1 2 3 4 5 6 7 4 5 4 6 4 15² 4 1. Select correct mufflers 2. Remove old muffler 6876767 3. Weld/install new muffler 15 14 14 12 15 16 13 3 4 24 5 4 3 18³ 568 7 6 7 4. Check/inspect work 5. Complete paperwork *Employee has lengthy conversations with boss (not job related). PERFORMANCE RATING (%) 110 90 105 100 130 By agreement with her workers, Jill allows a 10% fatigue factor and a 10% personal-time factor, but no time for delay. To com- pute standard time for the work operation, Jill excludes all obser- vations that appear to be unusual or nonrecurring. She does not want an error of more than 15%. a) What is the standard time for the task? b) How many observations are needed to assure a 95% confi- dence level? PX

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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