OPERATIONS MANAGEMENT CUSTOM ACCESS
OPERATIONS MANAGEMENT CUSTOM ACCESS
11th Edition
ISBN: 9780135622438
Author: KRAJEWSKI
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 7, Problem 18P

A

Summary Introduction

Interpretation: The critical path and expected time to complete the project are to be determined.

Concept Introduction: Critical path refers to set of network activities sequence in the project needed to operate the project in least possible time.

B

Summary Introduction

Interpretation: Total project cost from day 1 till the completion of the project needs to be plotted. Implications of the time differential on the cash flows and project scheduling need to be determined.

Concept Introduction: The earliest start times refers to earliest time the activity of a scheduled project may begin equalizing earliest times of completing all its predecessor activities and latest start times used in PERT analysis describing a portion of the project must be started so that project finish time cannot be delayed.

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The Advanced Tech Company has a project to design an integrated information data base for a major bank. Data for the project are given in the following table. Indirect project costs amount to ​$250 per day. The company will incur a ​$200 per day penalty for each day the project lasts beyond day 12.                                                                                                                                                                Activity Normal Time​ (days) Normal Cost​ ($) Crash Time​ (days) Crash Cost ​($) Immediate​ Predecessor(s) A 5 800 4 1,000 − B 5 1,100 2 2,900 − C 2 600 1 900 ​A, B D 3 1,200 2 2,000 B E 3 1,500 2 1,700 ​C, D F 2 1,300 1 1,400 E G 3 900 3 900 E H 5 500 2 800 G a. What is the​ project's duration if only normal times are​ used?   The project duration is nothing ​day(s). ​(Enter your response as an​ integer.)…
Your hospital has applied for certification as a level 1 stroke center. It is critical that the following project is completed in 18 weeks, before the next Joint Commission survey. Project activity times are listed in the table attached as an image.  Determine the minimum cost-schedule for this project to be completed in 18 weeks. Assume a linear relationship between crash cost and crash time. For example, crash cost per week for activity A can be calculated as: ($650 - $200)/(4-2) =  $225. 2. What is the difference in total project costs between the earliest completion time of the project using normal times and the minimum cost-schedule you found in part 1?
Using your results from Problem 6,(a) Calculate the probability that the project will be completedin 38 weeks.(b) Calculate the probability that the project will be completedin 42 weeks

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OPERATIONS MANAGEMENT CUSTOM ACCESS

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