A newspaper seller, Sam, is fine with the fact that he may not have enough newspapers to sell 20% of the time. Newspaper demand follows a normal distrution with 110 and std 10. He sells the newspapers to a selling price of $22 and can salvage any additional units for $2 at the end of each day. The newspaper seller incurs a fixed setup cost of $100 every day due to transportation when he places an order. His vendor, Kara, decided to increase her selling price to Sam. And, at the same time transportation cost increased more than the increase in the Kara's selling price. How should Sam change his

A newspaper seller, Sam, is fine with the fact that he may not have enough newspapers to sell 20% of the time. Newspaper demand follows a normal distrution with 110 and std 10. He sells the newspapers to a selling price of $22 and can salvage any additional units for $2 at the end of each day. The newspaper seller incurs a fixed setup cost of $100 every day due to transportation when he places an order. His vendor, Kara, decided to increase her selling price to Sam. And, at the same time transportation cost increased more than the increase in the Kara's selling price. How should Sam change his

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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The amount of denim used daily by the Southwest ApparelCompany in its manufacturing process to make jeans isnormally distributed with an average of 4000 yards ofdenim and a standard deviation of 600 yards. The lead timerequired to receive an order of denim from the textile mill is a constant 7 days. Determine the safety stock and re-order point if the company wants to limit the probability of a stockout and work stoppage to 5%.
ou are a newsvendor selling the San Pedro Times every morning. Before you get to work, you go to the printer and buy the day’s paper for $0.50 a copy. You sell a copy of the San Pedro Times for $1.25. Daily demand is distributed normally with mean = 335 and standard deviation = 67. At the end of each morning, any leftover copies are worthless and they go to a recycle bin. How many copies of the San Pedro Times should you buy each morning and what is the probability that you will run out of stock? Use Excel's NORM.S.INV() function to find the z value.
That One Book sells its books through The Witch and the Wardrobe bookstores. It costs That One Book $0.80 to print each book; it sells the book to The Witch and the Wardrobe for $2.50. The Witch and the Wardrobe then sells the books at retail for $6.00. Whatever doesn’t sell gets thrown away. Demand for the book each issue is normal with a mean of 5219 and a standard deviation of 1610. To give The Witch and the Wardrobe incentive to order more books, it proposes a revenue-sharing contract. Instead of selling the book to The Witch and the Wardrobe for $2.50, That One Book will sell its books to The Witch and the Wardrobe for only $1.00. However, for each book that The Witch and the Wardrobe sells at retail, The Witch and the Wardrobe must give $2.00 back to That One Book. With this revenue sharing agreement in place, what is the optimal order amount that will maximize The Witch and the Wardrobe expected profit? Please do fast ASAP
David's Delicatessen flies in Hebrew National salamis regularly to satisfy a growing demand for the salamis in Silicon Valley. The owner, David Gold, estimates that the demand for the salamis is pretty steady at 175 per month. The salamis cost Gold $1.85 each. The fixed cost of calling his brother in New York and having the salamis flown in is $200. It takes three weeks to receive an order. Gold's accountant, Irving Wu, recommendsan annual cost of capital of 22 percent, a cost of shelf space of 3 percent of the value of the item, and a cost of 2 percent of the value for taxes and insurance. How many salamis should Gold have on hand when he phones his brother to send another shipment?
The owner and manager of a hardware store reevaluates his inventory policy for hammers. sells an average of 50 hammers a month, so you have placed purchase orders for 50 hammers with a distributor at a cost of $20 each at the end of each month. But the owner does not place all the store orders and find that this takes much of your time. He estimates that the value of his time spent ordering hammers is $75. a) What must be the unit cost of maintaining hammers for the current policy of the hardware store to be Optimal according to the EOQ model? b) If the distributor delivers an order for hammers in 5 business days (out of an average of 25 per month), what should be the reorder point, according to the EOQ model?
49 A newspaper boy is trying to perfect his business in order to maximize the money he can save for a new car. Daily paper sales are normally distributed, with a mean of 100 and standard deviation of 10. He sells papers for $0.50 and pays $0.30 for them. Unsold papers are trashed with no salvage value. How many papers should he order each day and what % of the time will he experience a stockout? Are there any drawbacks to the order size proposed and how could the boy address such issues?
An electronics retailer wants to develop an inventory policy to achieve 99% chance of not getting stockouts for a chip. The daily demand for the chip is estimated to be Normal with mean 200 and standard deviation of 20. They count the chip inventory every 2 weeks to place an order, and it takes 11 days for the ordered chips to be delivered. The retailer operates 7 days a week, 365 days a year. They are going to implement an order-up-to model. A) What base stock level should they choose? B) What is the number of chips they would have on order (on average)? C) When they checked their inventory of chips to place a new order, they found that they ran out of stock completely. In addition, they have 10 chips on way to be delivered, while there are five customers who paid for 20 chips in total and are waiting to receive their chips. How many chips should the retailer order?
Demand for cars is normally distributed with a mean of 2,700 and a standard deviation of 640. The order quantity is 2,625 units. What is the expected sales (in units)?
You are a newsvendor selling the San Pedro Times every morning. Before you get to work, you go to the printer and buy the day's paper for $0.25 a copy. You sell a copy of the San Pedro Times for $1.30. Daily demand is distributed normally with mean = 260 and standard deviation = 46. At the end of each morning, any leftover copies are worthless and they go to a recycle bin. a. How many copies of the San Pedro Times should you buy each morning? Note: Use Excel's NORM.S.INV() function to find the z value. Round your z value and service level to 2 decimal places and final answer to the nearest whole number. Optimal order quantity b. Based on a, what is the probability that you will run out of stock? Note: Round your answer to the nearest whole percent. Probability %
A lawn and garden shop that is open for business seven days a week orders bags of grass seed every OTHER Monday. Lead time for seed orders is 5 days. On Monday, at ordering time, a clerk found 112 bags of seed in stock, and so he ordered 198 bags. Daily demand for grass seed is normally distributed with a mean of 15 bags and a standard deviation of four bags.The manager would like to know what the probability is that a grass seed stockout will occur before the next order arrives. Please show a correct solution and answer. Thank you.
Please do not give solution in image formate thanku. Weekly demand for HP printers at a Sam's Club store is normally distributed, with a mean of250 and a standard deviation of 150. The store manager continuously monitors inventory andcurrently orders 1,000 printers each time the inventory drops to 600 printers. HP currentlytakes two weeks to fill an order. How much safety inventory does the store carry? What CSLdoes Sam's Club achieve as a result of this policy? What fill rate does the store achieve?Ex:. Return to the Sam's Club store in . Assume that the supply lead time from HP isnormally distributed, with a mean of 2 weeks and a standard deviation of 1.5 weeks. Howmuch safety inventory should Sam's Club carry if it wants to provide a CSL of 95 percent?
A store has collected the following information on one of its products:Demand = 4,500 units/year Standard deviation of weekly demand = 12 units Ordering costs = $40/order Holding costs = $3/unit/year Cycle-service level = 90% (z for 90% = 1.28) Lead-time = 2 weeks Number of weeks per year = 52 weeks a. If a firm uses the continuous review system to control the inventory, what would be the order quantity and reorder point?