Homework3

1.
Cu=10-4=6
C0=4-1.5=2.5
F(Q*)=CuCu+ C0= 68.5=0.7059
From normal distribution table z=0.54,for argona=0.7059
So Q*=250+34*0.55=268.36? 269
269 boxex of lettuce should the supermarket purchase tomorrow.

2.
From the given conditions, we poop take chances that co=$125. If the demand exceeds the seats of no-shows, the Airline has to pay each(prenominal) customer a free round-trip ticket, which means underage hail, cu=$250.
Then F(Q*)=CuCu+ C0 = $250. $250+$125 = 0.6667
From normal distribution table z = 0.44 for country = 0.6667.
So Q* = 25 + 0.44×15 = 31.6 ? 32 seats
The superintendent Discount should overbook the flights 32 seats.

3.
The time length before datas next chip replenishment shall be 30+2=32 days.
Assume that the consumption rate of chips are isolated from day to day, so we can get the expected value of 32 days as?=5*32=clx, and ?= 1*32=5.66
The standard distribution table indicates that z=2.05 for area=0.98
then Q can be calculated as 160+5.66*2.05=171.603?172
The touchstone he needs to order equals to 172-35=137.

From the given conditions, we can get the following message.
Current Inventory Level: I = 35 units
Lead time: L =2days; the total menstruation: T+L=30 days
Then ?= 5*30 = 150 and ?= 1*30 = 5.477
F(R) = 0.98; From the Normal Dis Table, z = 2.05.




The quantity to order, then, is
Q = ?+z?-I = 150+2.05*(5.477) =161 units
So he should order 161 chips.

4.
measure Range| make up| Holding/carring cost| EOQ| Feasible|
little than 100 pounds| $20 per pound| 25%*20=5| (2*3000*40)/5=219| NO|
100 pounds to1,000pounds| $19 per pound| 25%*19=4.75| (2*3000*40)/4.75=225| YES|
More than 1000 pounds| $18 per pound| 25%*18=4.5| (2*3000*40)/4.5=231| NO|
Therefore, calculate total cost at (i) Q=225, C=$19, (ii) Q=100, C=$20, and (iii) Q=1000, C=$18

Q| C| Material Cost| Ordering cost| Holding cost| Total cost|
100| 20| 3000*20=60000| (3000/100)*40=1200| (100/2)*25%*20=250| 61450|
225| 19| 3000*19=57000| (3000/225)*40=533.3|...If you want to get a full essay, order it on our website: Orderessay



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