Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)
Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)
12th Edition
ISBN: 9780134855424
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter 9, Problem 26P

A

Summary Introduction

Interpretation: During the protection interval, the average and the standard deviation of demand is to be calculated.

Concept Introduction: Standard Deviation of demand depends upon the protection time and the standard deviation.

B

Summary Introduction

Interpretation: The target level of inventory is to be calculated.

Concept Introduction: Target Inventory is the sum of safety stock and the average demand at protection level.

C

Summary Introduction

Interpretation: The number of unit that should be ordered is to be calculated.

Concept Introduction: Reorder stage is the time to create an order for smooth running of organization.

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Annual demand is 16000 units, cost per order is $75 and carrying cost per unit as a    percentage is 10%. The company works 250 weeks a year; the lead-time on all orders placed is 6 working days. Assuming constant lead-time demand, and a unit cost of $45 what is the economic order quantity? What is the reorder point. If lead-time demand shows variability that follows a normal distribution with a mean μ =420 and a standard deviation σ =20, what will the revised reorder point if two stock-outs (shortages) are allowed? What is the company’s reorder point if the probability of a stock-out on any cycle is restricted to 0.05?
Nationwide Auto Parts uses a periodic review inventory control system for one of its stock items. The review interval is 6 weeks, and the lead time for receiving the materials ordered from its wholesaler is 3 weeks. Weekly demand is normally distributed, with a mean of 100 units and a standard deviation of 20 units.a. What is the average and the standard deviation of demand during the protection interval?b. What should be the target inventory level if the firm desires 97.5 percent stockout protection?c. If 350 units were in stock at the time of a periodic review, how many units should be ordered?
A retailer uses a periodic review order-up-to model to control the inventory of one of its high volume products. Average demand is 2580 units per week with a standard deviation of 1270. The review period is 5 weeks, the lead time is 11 weeks, and the safety factor used is 0.61. How many stockouts should the retailer expect for this product next year?

Chapter 9 Solutions

Operations Management: Processes and Supply Chains, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)

Ch. 9 - New Wave Shelving’s inventory manager would like...Ch. 9 - Yellow Press, Inc. buys paper in 1,500-pound rolls...Ch. 9 - Babble, Inc. buys 400 blank cassette tapes per...Ch. 9 - At Dot Com, a large retailer of popular books,...Ch. 9 - Leaky Pipe, a local retailer of plumbing supplies,...Ch. 9 - Sam’s Cat Hotel operates 52 weeks per year, 6...Ch. 9 - Consider again the kitty litter ordering policy...Ch. 9 - In a Q system, the demand rate for strawberry ice...Ch. 9 - Petromax Enterprises uses a continuous review...Ch. 9 - In a continuous review inventory system, the lead...Ch. 9 - In a two-bin inventory system, the demand for...Ch. 9 - You are in charge of inventory control of a highly...Ch. 9 - Your firm uses a continuous review system and...Ch. 9 - A company begins a review of ordering policies for...Ch. 9 - Prob. 22PCh. 9 - The Farmer’s Wife is a country store...Ch. 9 - Prob. 24PCh. 9 - Prob. 25PCh. 9 - Prob. 26PCh. 9 - In a P system, the lead time for a box of...Ch. 9 - Suppose that Sam’s Cat Hotel in Problem 13 uses...Ch. 9 - Your firm uses a periodic review system for all...Ch. 9 - Using the same information as in Problem 21,...Ch. 9 - Wood County Hospital consumes 1,000 boxes of...Ch. 9 - A golf specialty wholesaler operates 50 weeks per...Ch. 9 - What is the EOQ and what is the lowest total cost?Ch. 9 - What is the annual cost of holding inventory at...Ch. 9 - Prob. 3AMECh. 9 - Prob. 4AMECh. 9 - Prob. 5AMECh. 9 - Prob. 6AMECh. 9 - Comment on the sensitivity of the EOQ model to...Ch. 9 - Consider the pressures for small versus large...Ch. 9 - Prob. 2VCCh. 9 - The Marker Maker© product recently experienced an...Ch. 9 - Put yourself in Sue McCaskey’s position and...Ch. 9 - By how much do your recommendations for these two...
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