Compare and contrast centralized and decentralized purchasing systems
The advantages of a centralized purchasing system embody be capable of handle prices by having a central purchasing particular person. The price saving measures together with having the ability to order in bulk, negotiating giant contracts from sellers, and to handle stock so to order the gadgets as wanted with out overages.
The advantages of a decentralized purchasing could be seen as having managers from many departments having management over their stock and order for his or her particular wants. This method is alleged to permit administration to be extra environment friendly and to save cash by solely purchasing for the wants of that division.
2. A school bookstore opens a sales space and buys again used books throughout closing examination week. From 9 to 12 within the morning college students arrive on the price of 40 per hour. The bookstore worker can service 50 college students per hour. What’s the common time in minutes scholar shall be within the bookstore (system)?
three. Mission path A-C-E-J has these exercise time estimates in days:
Exercise Optimistic Most Seemingly Pessimistic
A three four 5
C 9 12 14
E 12 15 20
J 7 9 9
Compute the anticipated time or length for every exercise, the variance for every exercise, and the anticipated length and variance for the trail.
four. A pipe firm sells plastic pipe to water corporations. Historic demand in 4 completely different gross sales courses for the previous 40 weeks is proven under:
Gross sales Models Weeks
5K – 10Okay four
11Okay – 20Okay 12
21Okay – 30Okay 16
31Okay – 40Okay eight
If the corporate needed to do a Monte Carlo simulation Assessment, what would the random quantity assignments to the gross sales courses be?
5. What 7 steps ought to an organization plan for with a view to efficiently convert to a JIT system?
6. Two separate operations are required to finish a product. Use Johnson’s rule to sequence the next six jobs utilizing the given occasions.
Job Operation 1 Operation 2
A 1.6 hrs. 1.9 hrs.
B 1.three 1.1
C 1.5 1.7
D 1.6 1.four
E 1.5 1.2
F 2.zero 1.6
7. Draw a Gantt chart that exhibits how the next 5 courses could be scheduled into two school rooms, A and B: Enterprise Growth from 9 AM to 11:45 AM; Market Analysis from 2 PM to four:45 PM; Operations Administration from eight AM to 10:45 AM; Case Issues from Midday to 2:45 PM; and Managerial Finance from 11 AM to 1:45 PM. Depart a 15 minute interval between courses for college students to come back and go.
eight. What’s the distinction between restore and preventive upkeep?
9. An airline has 20 planes, is brief on cash, and would not wish to spend any greater than essential to preserve the planes safely flying. The price to carry out preventive upkeep (PM) on all 20 planes is $16,000. If a airplane has a malfunction between PM inspections, it prices a mean of $4000 to repair it. The malfunction historical past on the planes is as follows:
Months between PM Chance of malfunction
One .2
Two .three
Three .5
How usually ought to PM happen to reduce the overall anticipated prices?
10. Which of the next three delivery options could be essentially the most economical for a cargo of 80 packing containers if every field has a worth of $200 and a holding price of 30% of the value: in a single day at $300, two-day at $260, or 6 day at $180?
