EBK PRODUCTION AND OPERATIONS ANALYSIS
7th Edition
ISBN: 8220102480681
Author: Olsen
Publisher: WAVELAND
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Chapter 9, Problem 46AP
(a)
Summary Introduction
Interpretation:The mean flow time and average tardiness are to be determined for problem 45 (a) assuming SPT sequence.
Concept Introduction:
Shortest processing time rule is used for the minimization of mean time flow of project and hence it is used to minimize the time of mean flow of process. In this jobs will be arranged in increasing order sequence of the processing time.
(b)
Summary Introduction
Interpretation:The mean flow time and average tardiness are to be determined for problem 45 (b) assuming SPT sequence.
Concept Introduction:
Shortest processing time rule is used for the minimization of mean time flow of project and hence it is used to minimize the time of mean flow of process. In this jobs will be arranged in increasing order sequence of the processing time.
(c)
Summary Introduction
Interpretation: The mean flow time and average tardiness are to be determined for problem 45 (c) assuming SPT sequence.
Concept Introduction:
Shortest processing time rule is used for the minimization of mean time flow of project and hence it is used to minimize the time of mean flow of process. In this jobs will be arranged in increasing order sequence of the processing time.
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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…
Chapter 9 Solutions
EBK PRODUCTION AND OPERATIONS ANALYSIS
Ch. 9.5 - Prob. 1PCh. 9.5 - Prob. 2PCh. 9.5 - Prob. 3PCh. 9.5 - Prob. 4PCh. 9.5 - Prob. 5PCh. 9.6 - Prob. 6PCh. 9.6 - Prob. 7PCh. 9.6 - Prob. 8PCh. 9.6 - Prob. 9PCh. 9.6 - Prob. 10P
Ch. 9.7 - Prob. 11PCh. 9.7 - Prob. 12PCh. 9.7 - Prob. 13PCh. 9.7 - Prob. 14PCh. 9.7 - Prob. 15PCh. 9.7 - Prob. 16PCh. 9.7 - Prob. 17PCh. 9.8 - Prob. 18PCh. 9.8 - Prob. 19PCh. 9.8 - Prob. 20PCh. 9.8 - Prob. 21PCh. 9.8 - Prob. 22PCh. 9.9 - Prob. 23PCh. 9.9 - Prob. 24PCh. 9.9 - Prob. 25PCh. 9.10 - Prob. 27PCh. 9.10 - Prob. 28PCh. 9.10 - Prob. 29PCh. 9 - Prob. 30APCh. 9 - Prob. 31APCh. 9 - Prob. 32APCh. 9 - Prob. 33APCh. 9 - Prob. 34APCh. 9 - Prob. 35APCh. 9 - Prob. 36APCh. 9 - Prob. 37APCh. 9 - Prob. 38APCh. 9 - Prob. 39APCh. 9 - Prob. 40APCh. 9 - Prob. 41APCh. 9 - Prob. 42APCh. 9 - Prob. 43APCh. 9 - Prob. 44APCh. 9 - Prob. 45APCh. 9 - Prob. 46APCh. 9 - Prob. 47AP
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