Production and Operations Analysis, Seventh Edition
Production and Operations Analysis, Seventh Edition
7th Edition
ISBN: 9781478623069
Author: Steven Nahmias, Tava Lennon Olsen
Publisher: Waveland Press, Inc.
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Chapter 13, Problem 49AP

a

Summary Introduction

Interpretation:

Probability that a bulb lasts more than 3,000 hours

Concept Introduction:

Exponential distribution is a probabilitydistribution which finds probability of an event to occur between independent constant rate and continous rate.

Probability is the likelihood of an event to occur.. It ranges between 0 to 1. O implies no chance of occurance while 1 implies 100% chance of occurance.

b

Summary Introduction

Interpretation:

Probability that a bulb lasts less than 1,500 hours.

Concept Introduction:

Probability is the likelihood of an event to occur.. It ranges between 0 to 1. O implies no chance of occurance while 1 implies 100% chance of occurance.

c

Summary Introduction

Interpretation:

The probability that the light bulb lasts between 2,000 and 2,500 hours

Concept Introduction:

Probability is the likelihood of an event to occur.. It ranges between 0 to 1. O implies no chance of occurance while 1 implies 100% chance of occurance.

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Help me solve part C.
Boreki Enterprise has the following 10 items in inventory. Theodore Boreki asks you, a recent OM graduate, to divide these items into ABC classifications. Fill in the blanks and then answer the following questions. (Round dollar volume to the nearest whole number and percentage of dollar volume to two decimal places.) Dollar Item Annual Demand Cost/Unit Volume % of Total Dollar Volume A2 10 120 B8 4000 12 48,000 5.65 C7 1500 45 67,500 7.94 D1 2000 44 E9 1000 20 20,000 2.35 F3 25 40 G2 200 1500 300,000 35.29 H2 600 20 12,000 1.41 15 1000 300 J8 2500 5 12,500 1.47
Bobby Flay is responsible for assigning steel workers to a structural steel infrastructure construction task. Having taken Project Management at the University of Portland, he understands the importance of managing risk. To ensure that the task takes place as scheduled, Bobby must ensure that there are at least 8 steel workers available at the start of the task. Based on analysis of similar tasks, he estimates that steel workers will show up for the task with probability 0.9. If Bobby wants to be 97% sure that there are enough tasks to begin as scheduled, he should assign ______ steel workers to the task.
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