Sam's Cat Hotel operates 52weeks per​ year, 5 days per​ week, and uses a continuous review inventory system. It purchases kitty litter for ​$10.50 per bag. The following information is available about these bags.   Refer to the standard normal table AT END for​ z-values.   ≻Demand​= 92 ​bags/week ≻Order cost​ =​$58​/order ≻Annual holding cost​ =26 percent of cost ≻Desired ​cycle-service level=99 percent ≻Lead time​ = 1 ​week(s) ​(5 working​ days) ≻Standard deviation of weekly demand​ = 20 bags ≻Current ​on-hand inventory is 310 ​bags, with no open orders or backorders.   a. What is the​ EOQ? ​Sam's optimal order quantity is__________ bags. ​(Enter your response rounded to the nearest whole​ number.) What would be the average time between orders​ (in weeks)?   The average time between orders is _________weeks. ​(Enter your response rounded to one decimal​ place.) b. What should R ​be? The reorder point is _________ bags. ​(Enter your response rounded to the nearest whole​ number.) c. An inventory withdrawal of 10 bags was just made. Is it time to​ reorder? It 1. is not 2. is 3. time to reorder. d. The store currently uses a lot size of 495 bags​ (i.e., Q=495​). What is the annual holding cost of this​ policy? The annual holding cost is ​$____________. ​(Enter your response rounded to two decimal​ places.) What is the annual ordering​ cost? The annual ordering cost is $__________. ​(Enter your response rounded to two decimal​ places.) Without calculating the​ EOQ, how can you conclude from these two calculations that the current lot size is too​ large? A. When Q​ = 495​, the annual holding cost is larger than the ordering​ cost, therefore Q is too large. B. Both quantities are appropriate. C. When Q​ = 495​, the annual holding cost is less then the ordering​ cost, therefore Q is too small. D. There is not enough information to determine this.   e. What would be the annual cost saved by shifting from the 495​-bag lot size to the​ EOQ?   The annual holding cost with the EOQ is ​$_________. ​(Enter your response rounded to two decimal​ places.) The annual ordering cost with the EOQ is ​$_________. ​(Enter your response rounded to two decimal​ places.) ​Therefore, Sam's Cat Hotel saves ​$________ by shifting from the 495​-bag lot size to the EOQ. ​(Enter your response rounded to two decimal​ places.) -- The table below shows the total area under the normal curve for a point that is Z standard deviations to the right of the mean.   Z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.0 0.5000 0.5040 0.5080 0.5120 0.5160 0.5199 0.5239 0.5279 0.5319 0.5359 0.1 0.5398 0.5438 0.5478 0.5517 0.5557 0.5596 0.5636 0.5675 0.5714 0.5754 0.2 0.5793 0.5832 0.5871 0.5910 0.5948 0.5987 0.6026 0.6064 0.6103 0.6141 0.3 0.6179 0.6217 0.6255 0.6293 0.6331 0.6368 0.6406 0.6443 0.6480 0.6517 0.4 0.6554 0.6591 0.6628 0.6664 0.6700 0.6736 0.6772 0.6808 0.6844 0.6879 0.5 0.6915 0.6950 0.6985 0.7019 0.7054 0.7088 0.7123 0.7157 0.7190 0.7224 0.6 0.7258 0.7291 0.7324 0.7357 0.7389 0.7422 0.7454 0.7486 0.7518 0.7549 0.7 0.7580 0.7612 0.7642 0.7673 0.7704 0.7734 0.7764 0.7794 0.7823 0.7852 0.8 0.7881 0.7910 0.7939 0.7967 0.7996 0.8023 0.8051 0.8079 0.8106 0.8133 0.9 0.8159 0.8186 0.8212 0.8238 0.8264 0.8289 0.8315 0.8340 0.8365 0.8389 1.0 0.8413 0.8438 0.8461 0.8485 0.8508 0.8531 0.8554 0.8577 0.8599 0.8621 1.1 0.8643 0.8665 0.8686 0.8708 0.8729 0.8749 0.8770 0.8790 0.8810 0.8830 1.2 0.8849 0.8869 0.8888 0.8907 0.8925 0.8944 0.8962 0.8980 0.8997 0.9015 1.3 0.9032 0.9049 0.9066 0.9082 0.9099 0.9115 0.9131 0.9147 0.9162 0.9177 1.4 0.9192 0.9207 0.9222 0.9236 0.9251 0.9265 0.9279 0.9292 0.9306 0.9319 1.5 0.9332 0.9345 0.9357 0.9370 0.9382 0.9394 0.9406 0.9418 0.9430 0.9441 1.6 0.9452 0.9463 0.9474 0.9485 0.9495 0.9505 0.9515 0.9525 0.9535 0.9545 1.7 0.9554 0.9564 0.9573 0.9582 0.9591 0.9599 0.9608 0.9616 0.9625 0.9633 1.8 0.9641 0.9649 0.9656 0.9664 0.9671 0.9678 0.9686 0.9693 0.9700 0.9706 1.9 0.9713 0.9719 0.9726 0.9732 0.9738 0.9744 0.9750 0.9756 0.9762 0.9767 2.0 0.9773 0.9778 0.9783 0.9788 0.9793 0.9798 0.9803 0.9808 0.9812 0.9817 2.1 0.9821 0.9826 0.9830 0.9834 0.9838 0.9842 0.9846 0.9850 0.9854 0.9857 2.2 0.9861 0.9865 0.9868 0.9871 0.9875 0.9878 0.9881 0.9884 0.9887 0.9890 2.3 0.9893 0.9896 0.9898 0.9901 0.9904 0.9906 0.9909 0.9911 0.9913 0.9916 2.4 0.9918 0.9920 0.9922 0.9925 0.9927 0.9929 0.9931 0.9932 0.9934 0.9936 2.5 0.9938 0.9940 0.9941 0.9943 0.9945 0.9946 0.9948 0.9949 0.9951 0.9952 2.6 0.9953 0.9955 0.9956 0.9957 0.9959 0.9960 0.9961 0.9962 0.9963 0.9964 2.7 0.9965 0.9966 0.9967 0.9968 0.9969 0.9970 0.9971 0.9972 0.9973 0.9974 2.8 0.9974 0.9975 0.9976 0.9977 0.9977 0.9978 0.9979 0.9980 0.9980 0.9981 2.9 0.9981 0.9982 0.9983 0.9983 0.9984 0.9984 0.9985 0.9985 0.9986 0.9986 3.0 0.9987 0.9987 0.9987 0.9988 0.9988 0.9989 0.9989 0.9989 0.9990 0.9990 3.1 0.9990 0.9991 0.9991 0.9991 0.9992 0.9992 0.9992 0.9992 0.9993 0.9993 3.2 0.9993 0.9993 0.9994 0.9994 0.9994 0.9994 0.9994 0.9995 0.9995 0.9995 3.3 0.9995 0.9995 0.9995 0.9995 0.9996 0.9996 0.9996 0.9996 0.9996 0.9997

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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question 3
 
​Sam's Cat Hotel operates 52weeks per​ year, 5 days per​ week, and uses a continuous review inventory system. It purchases kitty litter for
​$10.50 per bag. The following information is available about these bags.
 
Refer to the standard normal table AT END for​ z-values.
 
≻Demand​= 92 ​bags/week
≻Order cost​ =​$58​/order
≻Annual holding cost​ =26 percent of cost
≻Desired ​cycle-service level=99 percent
≻Lead time​ = 1 ​week(s) ​(5 working​ days)
≻Standard deviation of weekly demand​ = 20 bags
≻Current ​on-hand inventory is 310 ​bags, with no open orders or backorders.
 
a. What is the​ EOQ? ​Sam's optimal order quantity is__________
bags. ​(Enter your response rounded to the nearest whole​ number.)
What would be the average time between orders​ (in weeks)?
 
The average time between orders is _________weeks. ​(Enter your response rounded to one decimal​ place.)
b. What should R ​be?
The reorder point is _________ bags. ​(Enter your response rounded to the nearest whole​ number.)
c. An inventory withdrawal of 10 bags was just made. Is it time to​ reorder?
It
1. is not
2. is
3. time to reorder.
d. The store currently uses a lot size of 495 bags​ (i.e., Q=495​).
What is the annual holding cost of this​ policy?
The annual holding cost is ​$____________.
​(Enter your response rounded to two decimal​ places.)
What is the annual ordering​ cost?
The annual ordering cost is $__________.
​(Enter your response rounded to two decimal​ places.)
Without calculating the​ EOQ, how can you conclude from these two calculations that the current lot size is too​ large?
A. When Q​ = 495​, the annual holding cost is larger than the ordering​ cost, therefore Q is too large.
B. Both quantities are appropriate.
C. When Q​ = 495​, the annual holding cost is less then the ordering​ cost, therefore Q is too small.
D. There is not enough information to determine this.
 
e. What would be the annual cost saved by shifting from the 495​-bag lot size to the​ EOQ?
 
The annual holding cost with the EOQ is ​$_________.
​(Enter your response rounded to two decimal​ places.)
The annual ordering cost with the EOQ is ​$_________.
​(Enter your response rounded to two decimal​ places.)
​Therefore, Sam's Cat Hotel saves ​$________ by shifting from the
495​-bag lot size to the EOQ. ​(Enter your response rounded to two decimal​ places.)
--
The table below shows the total area under the normal curve for a point that is Z standard deviations to the right of the mean.
 
Z
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.0
0.5000
0.5040
0.5080
0.5120
0.5160
0.5199
0.5239
0.5279
0.5319
0.5359
0.1
0.5398
0.5438
0.5478
0.5517
0.5557
0.5596
0.5636
0.5675
0.5714
0.5754
0.2
0.5793
0.5832
0.5871
0.5910
0.5948
0.5987
0.6026
0.6064
0.6103
0.6141
0.3
0.6179
0.6217
0.6255
0.6293
0.6331
0.6368
0.6406
0.6443
0.6480
0.6517
0.4
0.6554
0.6591
0.6628
0.6664
0.6700
0.6736
0.6772
0.6808
0.6844
0.6879
0.5
0.6915
0.6950
0.6985
0.7019
0.7054
0.7088
0.7123
0.7157
0.7190
0.7224
0.6
0.7258
0.7291
0.7324
0.7357
0.7389
0.7422
0.7454
0.7486
0.7518
0.7549
0.7
0.7580
0.7612
0.7642
0.7673
0.7704
0.7734
0.7764
0.7794
0.7823
0.7852
0.8
0.7881
0.7910
0.7939
0.7967
0.7996
0.8023
0.8051
0.8079
0.8106
0.8133
0.9
0.8159
0.8186
0.8212
0.8238
0.8264
0.8289
0.8315
0.8340
0.8365
0.8389
1.0
0.8413
0.8438
0.8461
0.8485
0.8508
0.8531
0.8554
0.8577
0.8599
0.8621
1.1
0.8643
0.8665
0.8686
0.8708
0.8729
0.8749
0.8770
0.8790
0.8810
0.8830
1.2
0.8849
0.8869
0.8888
0.8907
0.8925
0.8944
0.8962
0.8980
0.8997
0.9015
1.3
0.9032
0.9049
0.9066
0.9082
0.9099
0.9115
0.9131
0.9147
0.9162
0.9177
1.4
0.9192
0.9207
0.9222
0.9236
0.9251
0.9265
0.9279
0.9292
0.9306
0.9319
1.5
0.9332
0.9345
0.9357
0.9370
0.9382
0.9394
0.9406
0.9418
0.9430
0.9441
1.6
0.9452
0.9463
0.9474
0.9485
0.9495
0.9505
0.9515
0.9525
0.9535
0.9545
1.7
0.9554
0.9564
0.9573
0.9582
0.9591
0.9599
0.9608
0.9616
0.9625
0.9633
1.8
0.9641
0.9649
0.9656
0.9664
0.9671
0.9678
0.9686
0.9693
0.9700
0.9706
1.9
0.9713
0.9719
0.9726
0.9732
0.9738
0.9744
0.9750
0.9756
0.9762
0.9767
2.0
0.9773
0.9778
0.9783
0.9788
0.9793
0.9798
0.9803
0.9808
0.9812
0.9817
2.1
0.9821
0.9826
0.9830
0.9834
0.9838
0.9842
0.9846
0.9850
0.9854
0.9857
2.2
0.9861
0.9865
0.9868
0.9871
0.9875
0.9878
0.9881
0.9884
0.9887
0.9890
2.3
0.9893
0.9896
0.9898
0.9901
0.9904
0.9906
0.9909
0.9911
0.9913
0.9916
2.4
0.9918
0.9920
0.9922
0.9925
0.9927
0.9929
0.9931
0.9932
0.9934
0.9936
2.5
0.9938
0.9940
0.9941
0.9943
0.9945
0.9946
0.9948
0.9949
0.9951
0.9952
2.6
0.9953
0.9955
0.9956
0.9957
0.9959
0.9960
0.9961
0.9962
0.9963
0.9964
2.7
0.9965
0.9966
0.9967
0.9968
0.9969
0.9970
0.9971
0.9972
0.9973
0.9974
2.8
0.9974
0.9975
0.9976
0.9977
0.9977
0.9978
0.9979
0.9980
0.9980
0.9981
2.9
0.9981
0.9982
0.9983
0.9983
0.9984
0.9984
0.9985
0.9985
0.9986
0.9986
3.0
0.9987
0.9987
0.9987
0.9988
0.9988
0.9989
0.9989
0.9989
0.9990
0.9990
3.1
0.9990
0.9991
0.9991
0.9991
0.9992
0.9992
0.9992
0.9992
0.9993
0.9993
3.2
0.9993
0.9993
0.9994
0.9994
0.9994
0.9994
0.9994
0.9995
0.9995
0.9995
3.3
0.9995
0.9995
0.9995
0.9995
0.9996
0.9996
0.9996
0.9996
0.9996
0.9997
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