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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Sam's Pet Hotel operates 51 weeks per year, 6 days per week, and uses a continuous review inventory system. It purchases kitty litter for $11.00 per bag. The following information is available about these bags: > Demand 95 bags/week > Order cost $52.00/order > Annual holding cost = 25 percent of cost > Desired cycle-service level = 80 percent >Lead time 4 weeks (24 working days) > Standard deviation of weekly demand = 15 bags > Current on-hand inventory is 320 bags, with no open orders or backorders. a. Suppose that the weekly demand forecast of 95 bags is incorrect and actual demand averages only 75 bags per week. How much higher will total costs be, owing to the distorted EOQ caused by this forecast error? The costs will be $ higher owing to the error in EOQ. (Enter your response rounded to two decimal places.)

Sam's Pet Hotel operates 50 weeks per year, 6 days per week, and uses a continuous review inventory system. It purchases kitty litter for $10.50 per bag. The following information is available about these bags: > Demand = 95 bags/week > Order cost = $55.00/order > Annual holding cost = 35 percent of cost > Desired cycle-service level = 80 percent > Lead time = 4 weeks (24 working days) > Standard deviation of weekly demand = 15 bags > Current on-hand inventory is 320 bags, with no open orders or backorders. a. Suppose that the weekly demand forecast of 95 bags is incorrect and actual demand averages only 75 bags per week. How much higher will total costs be, owing to the distorted EOQ caused by this forecast error? The costs will be $ 10.64 higher owing to the error in EOQ. (Enter your response rounded to two decimal places.) b. Suppose that actual demand is 75 bags but that ordering costs are cut to only $13.00 by using the internet to automate order placing. However, the buyer does…

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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