The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of FCFS basis. Concept Introduction: FCFS basis - Normally, there is a process in attending the jobs or, customers. FCFS basis means attending a job or customer on First come first serve basis. In other words, the job/customer which/who comes first is attended first.

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Answer 1

Question

Chapter 9, Problem 32AP

A.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of FCFS basis.

Concept Introduction:

FCFS basis- Normally, there is a process in attending the jobs or, customers. FCFS basis means attending a job or customer on First come first serve basis. In other words, the job/customer which/who comes first is attended first.

b.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of SPT sequencing.

Concept Introduction:

SPT: SPT when expanded becomes shortest processing time. In the rule, the jobs must be arranged in increasing order according to the processing time.

c.

Summary Introduction

Interpretation: A suitable sequence has to be made that provides a lower weighted mean flow time value than FCFS and SPT sequencing.

Concept Introduction:

Optimal sequence: It is supposed to be sequence or series of jobs that has to take place to minimize the idle time and at the same time all the jobs are completed.

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Students have asked these similar questions

Six patients are waiting in a hospital emergency room to receive care for various complaints, ranging from a sprained ankle to a gunshot wound. The patients are numbered in the sequence that they arrived and are given a priority weighting based on the severity of the problem. There is only one doctor available.Consider the situation of the emergency room mentioned. Determine the sequence in which patients should be treated in order to minimize the weighted value of the mean flow time.

six patients are waiting in a hospital emergency room to receive care for variouscomplaints, ranging from a sprained ankle to a gunshot wound. The patients arenumbered in the sequence that they arrived and are given a priority weighting basedon the severity of the problem. There is only one doctor available.Patient 1 2 3 4 5 6Time required 20 min 2 hr 30 min 10 min 40 min 1 hrPriority 1 10 3 5 2 2a. Suppose that the patients are scheduled on an FCFS basis. Compute the meanflow time and the weighted mean flow time, where the weight is the priority numberassociated with each patient.b. Perform the calculations in part (a) for SPT sequencing.c. Determine a sequence different from those in parts (a) and (b) that achieves alower value of the weighted mean flow time.

The owner/operator of the local franchise of Handyman, Inc., has four jobs to do today, shown in the order they were received: Job processing time hrs due from now W 4 4 X 3 5 Y 2 2 Z 1 1 If he uses the earliest due date first priority rule to schedule these jobs, what will be the average job tardiness?

Answer 2

Question

Chapter 9, Problem 32AP

A.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of FCFS basis.

Concept Introduction:

FCFS basis- Normally, there is a process in attending the jobs or, customers. FCFS basis means attending a job or customer on First come first serve basis. In other words, the job/customer which/who comes first is attended first.

b.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of SPT sequencing.

Concept Introduction:

SPT: SPT when expanded becomes shortest processing time. In the rule, the jobs must be arranged in increasing order according to the processing time.

c.

Summary Introduction

Interpretation: A suitable sequence has to be made that provides a lower weighted mean flow time value than FCFS and SPT sequencing.

Concept Introduction:

Optimal sequence: It is supposed to be sequence or series of jobs that has to take place to minimize the idle time and at the same time all the jobs are completed.

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Answer 3

Question

Chapter 9, Problem 32AP

A.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of FCFS basis.

Concept Introduction:

FCFS basis- Normally, there is a process in attending the jobs or, customers. FCFS basis means attending a job or customer on First come first serve basis. In other words, the job/customer which/who comes first is attended first.

b.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of SPT sequencing.

Concept Introduction:

SPT: SPT when expanded becomes shortest processing time. In the rule, the jobs must be arranged in increasing order according to the processing time.

c.

Summary Introduction

Interpretation: A suitable sequence has to be made that provides a lower weighted mean flow time value than FCFS and SPT sequencing.

Concept Introduction:

Optimal sequence: It is supposed to be sequence or series of jobs that has to take place to minimize the idle time and at the same time all the jobs are completed.

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Answer 4

Question

Chapter 9, Problem 32AP

A.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of FCFS basis.

Concept Introduction:

FCFS basis- Normally, there is a process in attending the jobs or, customers. FCFS basis means attending a job or customer on First come first serve basis. In other words, the job/customer which/who comes first is attended first.

b.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of SPT sequencing.

Concept Introduction:

SPT: SPT when expanded becomes shortest processing time. In the rule, the jobs must be arranged in increasing order according to the processing time.

c.

Summary Introduction

Interpretation: A suitable sequence has to be made that provides a lower weighted mean flow time value than FCFS and SPT sequencing.

Concept Introduction:

Optimal sequence: It is supposed to be sequence or series of jobs that has to take place to minimize the idle time and at the same time all the jobs are completed.

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Answer 5

Chapter 9, Problem 32AP

A.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of FCFS basis.

Concept Introduction:

FCFS basis- Normally, there is a process in attending the jobs or, customers. FCFS basis means attending a job or customer on First come first serve basis. In other words, the job/customer which/who comes first is attended first.

b.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of SPT sequencing.

Concept Introduction:

SPT: SPT when expanded becomes shortest processing time. In the rule, the jobs must be arranged in increasing order according to the processing time.

c.

Summary Introduction

Interpretation: A suitable sequence has to be made that provides a lower weighted mean flow time value than FCFS and SPT sequencing.

Concept Introduction:

Optimal sequence: It is supposed to be sequence or series of jobs that has to take place to minimize the idle time and at the same time all the jobs are completed.

Answer 6

Chapter 9, Problem 32AP

A.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of FCFS basis.

Concept Introduction:

FCFS basis- Normally, there is a process in attending the jobs or, customers. FCFS basis means attending a job or customer on First come first serve basis. In other words, the job/customer which/who comes first is attended first.

Answer 7

Chapter 9, Problem 32AP

A.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of FCFS basis.

Concept Introduction:

FCFS basis- Normally, there is a process in attending the jobs or, customers. FCFS basis means attending a job or customer on First come first serve basis. In other words, the job/customer which/who comes first is attended first.

Answer 8

b.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of SPT sequencing.

Concept Introduction:

SPT: SPT when expanded becomes shortest processing time. In the rule, the jobs must be arranged in increasing order according to the processing time.

Answer 9

b.

Summary Introduction

Interpretation: The mean flow time and weighted mean flow time have to be computed if the patients are scheduled of SPT sequencing.

Concept Introduction:

SPT: SPT when expanded becomes shortest processing time. In the rule, the jobs must be arranged in increasing order according to the processing time.

Answer 10

c.

Summary Introduction

Interpretation: A suitable sequence has to be made that provides a lower weighted mean flow time value than FCFS and SPT sequencing.

Concept Introduction:

Optimal sequence: It is supposed to be sequence or series of jobs that has to take place to minimize the idle time and at the same time all the jobs are completed.

Answer 11

c.

Summary Introduction

Interpretation: A suitable sequence has to be made that provides a lower weighted mean flow time value than FCFS and SPT sequencing.

Concept Introduction:

Optimal sequence: It is supposed to be sequence or series of jobs that has to take place to minimize the idle time and at the same time all the jobs are completed.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 9.5 - Prob. 1P Ch. 9.5 - Prob. 2P Ch. 9.5 - Prob. 3P Ch. 9.5 - Prob. 4P Ch. 9.5 - Prob. 5P Ch. 9.6 - Prob. 6P Ch. 9.6 - Prob. 7P Ch. 9.6 - Prob. 8P Ch. 9.6 - Prob. 9P Ch. 9.6 - Prob. 10P

Solution Summary: The author explains that the mean flow time and weighted flow times have to be computed if the patients are scheduled of SPT sequencing.

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