Op Man Final Review Problems

They hav e c ompletedtwounits s ofarthefirs tunittook

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Unformatted text preview: signme nt Pr int Vie w awar d: 1.42 out of 1.42 points Problem 6-2 Company Z is jus t s tarting to mak e a brand new produc t they hav e nev er made before. They hav e c ompleted two units s o far. The firs t unit took 25 hours to c omplete and the nex t unit took 20 hours . Bas ed only on this information, what would be the es timate of the learning perc entage in this proc es s ? (Round your answer to 1 decim al place.) Es timated learning perc entage 80.0 % Worksheet Problem 6­2 Learning Objective: 06­01 Understand what a learning curve is and where learning curves are applicable. Problem 6-2 Company Z is jus t s tarting to mak e a brand new produc t they hav e nev er made before. They hav e c ompleted two units s o far. The firs t unit took 25 hours to c omplete and the nex t unit took 20 hours . Bas ed only on this information, what would be the es timate of the learning perc entage in this proc es s ? (Round your answer to 1 decim al place.) Es timated learning perc entage 80.0 ± 0.1 % Explanation: Learning c urv e theory s tates that as output doubles , the time to perform a tas k dec reas es by a fix ed amount. In this problem, as we produc ed the s ec ond unit, we had doubled output from the firs t unit, s o we c an mak e an es timate of the learning perc entage = (Unit 2 time)/(Unit 1 time) = 20/25. 8. awar d: 1.07 out of 1.60 points Problem 6-4 You’v e jus t c ompleted a pilot run of 10 units of a major produc t and found the proc es s ing time for eac h unit was as follows : Us e Ex hibit 6.4 and Ex hibit 6.5. UNIT NUMBER TIME (HOURS) 1 860 2 580 3 490 4 410 5 380 6 340 7 320 8 300 9 280 10 270 a. Ac c ording to the pilot run, what would y ou es timate the learning rate to be? (Do not round interm ediate calculations. Round your answer to the nearest whole percent.) Es timated learning rate http://e z to.mhe c loud.mc gr a w- hill.c om/hm.tpx? todo= pr intvie w 9/29 1/29/2014 Assignme nt Pr int Vie w 70 % b. Bas ed on (a), how muc h time would it tak e for the nex t 190 units , as s uming no los s of learning? (Round your answer to the nearest whole num ber.) Time tak en 26 hours c. How muc h time would it tak e to mak e the 1,000th unit? (Round your answer to the nearest whole num ber.) Time tak en 26 hours Worksheet Problem 6­4 Learning Objective: 06­02 Plot and analyze learning curves. Problem 6-4 You’v e jus t c ompleted a pilot run of 10 units of a major produc t and found the proc es s ing time for eac h unit was as follows : Us e Ex hibit 6.4 and Ex hibit 6.5. UNIT NUMBER TIME (HOURS) 1 860 2 580 3 490 4 410 5 380 6 340 7 320 8 300 9 280 10 270 a. Ac c ording to the pilot run, what would y ou es timate the learning rate to be? (Do not round interm ediate calculations. Round your answer to the nearest whole percent.) Es timated learning rate 70 ± 1 % b. Bas ed on (a), how muc h time would it tak e for the nex t 190 units , as s uming no los s of learning? (Round your answer to the nearest whole num ber.) Time tak en 17,672 ± 1 hours c. How muc h time would it tak e to mak e the 1,000th unit? (Round your answer to the nearest whole num ber.) Time tak en 25 ± 1 hours Explanation: a. You c an es timate the learning perc entage by av eraging the learning between the firs t and s ec ond units , the s ec ond and fourth units , and the fourth and eighth units . In this c as e that would be: (580/860 + 410/580 + 300/410)/3 = 70% . b. You c an figure this out by us ing the c umulativ e fac tors in Ex hibit 6.5. You want to find the time needed for the 11th through 200th units . That is equal to the time for all 200 units minus the time for the firs t 10. So tak e the c umulativ e fac tor for 200 units , s ubtrac t off the c umulativ e fac tor for 10 units , and multiply the res ult by the firs t unit’s produc tion time. c. http://e z to.mhe c loud.mc gr a w- hill.c om/hm.tpx? todo= pr intvie w 10/29 1/29/2014 Assignme nt Pr int Vie w You c an figure this out by us ing the unit fac tors in Ex hibit 6.4. Simply tak e the unit fac tor for the 1,000th unit and multiply by the time for the firs t unit. http://e z to.mhe c loud.mc gr a w- hill.c om/hm.tpx? todo= pr intvie w 11/29 1/29/2014 9. Assignme nt Pr int Vie w awar d: 1.42 out of 1.42 points Problem 7-8 A book publis her has fix ed c os ts of $340,000 and v ariable c os ts per book of $10.00. The book s ells for $22.00 per c opy . a. How many book s mus t be s old to break ev en? (Roundup your answer to the next whole num ber.) Book s to be s old 28,334 b. If the fix ed c os t inc reas ed, would...
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This note was uploaded on 01/29/2014 for the course MAN 4504 taught by Professor Georgekyparisis during the Fall '09 term at FIU.

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