{"id":23525,"date":"2022-01-07T22:48:52","date_gmt":"2022-01-07T22:48:52","guid":{"rendered":"https:\/\/assignmenttutors.net\/blog\/grand-view-university-operation-mgt-455-problem-set-6\/"},"modified":"2022-01-07T22:48:52","modified_gmt":"2022-01-07T22:48:52","slug":"grand-view-university-operation-mgt-455-problem-set-6","status":"publish","type":"post","link":"https:\/\/assignmenttutors.net\/blog\/grand-view-university-operation-mgt-455-problem-set-6\/","title":{"rendered":"Grand view university operation mgt 455 – problem set 6"},"content":{"rendered":"
\n

Problem Set 6\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
9.13, 9.17, 10.29, E.3, E.5, and E.6\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
9.13\u00a0Sue Helms Appliances wants to establish an assembly line to manufacture its new product, the Micro Popcorn Popper. The goal is to produce five poppers per hour. The tasks,task times, and immediate predecessors for producing one Micro Popcorn Popper are as follows:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\u00a0Task\u00a0“Time
(min)”\u00a0“Immediate
Predecessors”\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\u00a0A\u00a010\u00a0–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\u00a0B\u00a012\u00a0A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\u00a0C\u00a08\u00a0A,B\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\u00a0D\u00a06\u00a0B,C\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\u00a0E\u00a06\u00a0C\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\u00a0F\u00a06\u00a0D,E\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
a)\u00a0\u00a0\u00a0\u00a0\u00a0 What is the theoretical minimum for the smallest number of workstations that Helms can achieve in this assembly line?\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0b)\u00a0\u00a0\u00a0\u00a0\u00a0 Graph the assembly line and assign workers to workstations. Can you assign them with the theoretical minimum?
c)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 What is the efficiency of your assignment?<\/p>\n

9.17\u00a0The Mach 10 is a one-person sailboat manufactured by Creative Leisure. The final assembly plant is in Cupertino, California. The assembly area is available for production of the Mach 10 for 200 minutes per day. (The rest of the time it is busy making other products.) The daily demand is 60 boats. Given the information in the table on the next page,\u00a0\u00a0\u00a0
\u00a0Task\u00a0Time (min)\u00a0Predecessors
\u00a0A\u00a03\u00a0–
\u00a0B\u00a06\u00a0–
\u00a0C\u00a07\u00a0A
\u00a0D\u00a05\u00a0A,B
\u00a0E\u00a02\u00a0B
\u00a0F\u00a04\u00a0C
\u00a0G\u00a05\u00a0F
\u00a0H\u00a07\u00a0D,E
\u00a0I\u00a01\u00a0H
\u00a0J\u00a06\u00a0E
\u00a0K\u00a04\u00a0G,I,J
\u00a0\u00a050\u00a0
a)\u00a0\u00a0\u00a0\u00a0\u00a0 Draw the precedence diagram.
b)\u00a0\u00a0\u00a0\u00a0\u00a0 If the daily (24-hour) production rate is 96 units, what is the highest allowable cycle time?
c)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 If the cycle time after allowances is given as 10 minutes, what is the daily (24-hour) production rate?
d)\u00a0\u00a0\u00a0\u00a0\u00a0 With a 10-minute cycle time, what is the theoretical minimum number of stations with which the line can be balanced?
e)\u00a0\u00a0\u00a0\u00a0\u00a0 With a 10-minute cycle time and six workstations, what is the efficiency?
f)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 What is the total idle time per cycle with a 10-minute cycle time and six workstations?
g)\u00a0\u00a0\u00a0\u00a0\u00a0 What is the best work station assignment you can make without exceeding a 10-minute cycle time and what is its efficiency?<\/p>\n

10.29\u00a0\u00a0 The Dubuque Cement Company packs 80-pound bags of concrete mix. Time-study data for the filling activity are shown in the following table. Because of the high physical demands of the job, the company\u2019s policy is a 23% allowance for workers.
\u00a0Element\u00a0Observations (Seconds)\u00a0\u00a0\u00a0\u00a0\u00a0“Performance
Rating (%)”
\u00a0\u00a01\u00a02\u00a03\u00a04\u00a05\u00a0
\u00a0Grasp and place bag\u00a08\u00a09\u00a08\u00a011\u00a07\u00a0110
\u00a0Fill bag\u00a036\u00a041\u00a039\u00a035\u00a0122a\u00a085
\u00a0Seal bag\u00a015\u00a017\u00a013\u00a020\u00a018\u00a0105
\u00a0Place bag on conveyor\u00a08\u00a06\u00a09\u00a030b\u00a035b\u00a090
a)\u00a0\u00a0\u00a0\u00a0\u00a0 Compute the standard time for the bag-packing task.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
b)\u00a0\u00a0\u00a0\u00a0\u00a0 How many observations are necessary for 99% confidence, within \u00b1 5% accuracy?<\/p>\n

E3\u00a0\u00a0\u00a0\u00a0\u00a0 If Professor Laurie Macdonald takes 15 minutes to grade the first exam and follows an 80% learning curve, how long will it take her:\u00a0\u00a0\u00a0\u00a0a)\u00a0\u00a0\u00a0\u00a0\u00a0 to grade the 25th exam?\u00a0
b)\u00a0\u00a0\u00a0\u00a0\u00a0 to grade the first 10 exams?<\/p>\n

E5\u00a0Beth Zion Hospital has received initial certification from the state of California to become a center for liver transplants. The hospital, however, must complete its first 18 transplants under great scrutiny and at no cost to the patients. The very first transplant, just completed, required 30 hours. On the basis of research at the hospital, Beth Zion estimates that it will have an 80% learning curve. Estimate the time it will take to complete:
a)\u00a0\u00a0\u00a0\u00a0\u00a0 the 5th liver transplant.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
b)\u00a0\u00a0\u00a0\u00a0\u00a0 all of the first 5 transplants.
c)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 the 18th transplant.
d)\u00a0\u00a0\u00a0\u00a0\u00a0 all 18 transplants<\/p>\n

E6\u00a0Refer to Problem E.5. Beth Zion Hospital has just been informed that only the first 10 transplants must be performed at the hospital\u2019s expense. The cost per hour of surgery is estimated to be $5,000. Again, the learning rate is 80% and the first surgery took 30 hours.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a)\u00a0\u00a0\u00a0\u00a0\u00a0 How long will the 10th surgery take?
b)\u00a0\u00a0\u00a0\u00a0\u00a0 How much will the 10th surgery cost?
c)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 How much will all 10 cost the hospital?\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Problem Set 6\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a09.13, 9.17, 10.29, E.3, E.5, and E.6\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a09.13\u00a0Sue Helms Appliances wants to establish an assembly line to manufacture its new product, the Micro Popcorn Popper. The goal is to produce five poppers per hour. The tasks,task times, and immediate predecessors for producing one Micro Popcorn Popper are as follows:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Task\u00a0“Time(min)”\u00a0“ImmediatePredecessors”\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0A\u00a010\u00a0–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0B\u00a012\u00a0A\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0C\u00a08\u00a0A,B\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0D\u00a06\u00a0B,C\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0E\u00a06\u00a0C\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0F\u00a06\u00a0D,E\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a)\u00a0\u00a0\u00a0\u00a0\u00a0 What is the theoretical minimum […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-23525","post","type-post","status-publish","format-standard","hentry","category-education"],"_links":{"self":[{"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/posts\/23525","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/comments?post=23525"}],"version-history":[{"count":0,"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/posts\/23525\/revisions"}],"wp:attachment":[{"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/media?parent=23525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/categories?post=23525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/assignmenttutors.net\/blog\/wp-json\/wp\/v2\/tags?post=23525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}