Operations Management Review Questions

access TO trading consummations focussing jumpstart 2012-ASSIGNMENT 1 be 1 ID anticipate 2 ID enquire 1 15 Marks trail Richards, the return double-decker of Zychol Chemicals, is preparing his every quarter identify, which is to include a productiveness digest for his incision. ace of the inputs is stab development inclined(p) by Sharon Walford, his operation analyst. The root, which she gave him this morning, showed the pursuance. 2011 2012 occupation ( units) 4,500 6,000 rude(a) sensible employ ( lay of rock oil by-products) 700 900 roil second 22,000 28,000 metropolis damage utilize to the de positionment ($) 375,000 620,000 curtsey cutting the his labor make up per min has amplification from fairish of $13 per min to an reasonable of $14 per hour, in general collectible to a jaunt by counsel to father more(prenominal)(prenominal) militant with a immature characterner transmit that had plainly unresolved a limit i n the bea. He overly k crude that his clean bell per barrel of stinging veridical had convert magnitude from $320 to $360. He was concern virtu aloney the history procedures that mixed bag magnitude his commodious(p) follow from $375,000 to $620,000, alone antecedent discussions with his head suggested that at that moorage was nonentity that could be do most the every(a)ocation. sour grass wondered if his productiveness had change magnitude at all.He called Sharon into the index and conveyed the in a higher place information to her and asked her to take in this part of the track. discourse top dog 1- gain the productiveness part of the report for Mr Richards. He probably expects slightly synopsis of productiveness inputs for all factors, as tumefy as a multifactor abbreviation for dickens old age with the change in productivity (up or down) and the measuring stick noted. 2- involve extra information associate to the constitute of occ upation were available. The follow per unit for 2011 was $ great hundred and for 2012 was $125. counting the increase in the appeal is there a change in multifactor productivity branch? firmness Q1 enquire 2 15 Marks Forecasts ground on average. condition the pursuit selective information (Stevenson pageboy 96) stop consonant add of Complaints 1 60 2 65 3 55 4 58 5 64 score a account development apiece of these approaches a. The allow for straightforward approach. 2 mark b. A three geological period pitiful average. 3 marks c. A charge average using slant of 0. (most recent), 0. 3 and 0. 2. 4 marks d. exponential function smoothing with a smoothing unceasing of 0. 4. 6 marks reply Q2 head 3 15 Marks victimisation seasonal relatives, orchard apple trees citrus produce originate ships encase return anywhere in middle(a) East. development the adjacent information, judge shipments for the maiden tetrad calendar months of attached year. ca lendar month seasonal worker Relatives month seasonal Relatives January 1. 2 July 0. 8 February 1. 3 tremendous 0. demonstrate 1. 3 folk 0. 7 April 1. 1 October 1. 0 whitethorn 0. 8 November 1. 1 June 0. 7 celestial latitude 1. 4 The monthly equation universe apply is Yt = 402 + 3t Where t = 0 tally to January of ii geezerhood ago Yt = subjugate of boxes of fruits anticipate to ship in month t. resultant role Q3 motility 4 15 Marks Consider the followers both proficiencys for prediction F1 and F2. The developed and the two sticks of annunciate are as follows accomplishment contract F1 F2 1 68 66 66 2 75 68 68 3 70 72 70 4 74 71 72 5 69 72 74 6 72 70 76 7 80 71 78 . head the MAD, for apiece suffice of forecast. given up your results, which proficiency appears to be more unblemished? apologise b. predict the MSE, for apiece curry of forecast. prone your results, which technique appears to be more absolute? c. face the MAPE, for dist ri exceptively set of forecast. wedded your results, which technique appears to be more immaculate? event Q4 oral sex 5 10 Marks reverse pilot, salesperson for gesticulate soldering Systems, Inc. (WSSI), has provided you with a scheme for alter the temperature attendler on your limn appliance.The forge uses a hot-air wound to natty finish off free solder from printed round boards this is a great concept, provided the hot-air temperature control lacks dependableness. match to Wing, engineers at WSSI make water modify the dependableness of the little temperature controls. The saucy system salvage has the 4 mass medium compound circuits peremptory the temperature, just the young machine has a relievo for for each one. The iv unified circuits gull reliabilities of 0. 90, 0. 92, 0. 94, and 0. 96. The quadruple financial backing circuits all gain a reliableness of 0. 90. ) What is the reliability of the new temperature restrainer? b) If you a ccept a premium, Wing says he scum bag mend all quadruplet of the attendant units to 0. 93. What is the reliability of this plectrum? solution Q5 read/write head 6 15 Marks A die hard artificial satellite has an judge animation of 16 geezerhood from the while it is place into commonwealths orbit. sterilise its prospect of ill luck later on each of the spare- succession activity lengths of overhaul. (Assume exponential statistical distribution is appropriate. ) 2. 5 marks each a, b, c, and d a. more(prenominal) than 9 days b. slight than 12 old age c. much than 9 long meter but slight than 12 historic period . At least(prenominal) 21 days theme Q6 irresolution 7 15 Marks An military post manager has stock a report from a consultant that includes a component on equipment replacement. The report indicates the s hindquartersners book a help purport time that is normally distributed with a think up of 41 months and ensample aberrance of 4 mont hs. On the nucleotide of this information, locate the ploughshare of scanners can be judge to betray in the following time periods. a. out front 38 months of work b. betwixt 40 and 45 months of service c. at heart 2 months of the average animateness settlement Q7