EBK OPERATIONS MANAGEMENT
14th Edition
ISBN: 9781260718447
Author: Stevenson
Publisher: MCG COURSE
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Textbook Question
Chapter 19, Problem 8P
For Problem 6b:
a. Find the range of feasibility for each constraint, and interpret your answers.
b. Determine the range of optimality for each coefficient of the objective function. Interpret your results.
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Sarah Anderson, the Marketing Manager at Exeter Township's Cultural Center, is conducting research on the attendance history for cultural events in the area over the past ten years. The following data has been collected on the number of attendees who registered for events at the cultural center.
Year
Number of Attendees
1
700
2
248
3
633
4
458
5
1410
6
1588
7
1629
8
1301
9
1455
10
1989
You have been hired as a consultant to assist in implementing a forecasting system that utilizes various forecasting techniques to predict attendance for Year 11.
a) Calculate the Three-Period Simple Moving Average
b) Calculate the Three-Period Weighted Moving Average (weights: 50%, 30%, and 20%; use 50% for the most recent period, 30% for the next most recent, and 20% for the oldest)
c) Apply Exponential Smoothing with the smoothing constant alpha = 0.2.
d) Perform a Simple Linear Regression analysis and provide the adjusted…
Ruby-Star Incorporated is considering two different vendors for one of its top-selling products which has an average weekly demand of
70
units and is valued at
$90
per unit. Inbound shipments from vendor 1 will average
390
units with an average lead time (including ordering delays and transit time) of
4
weeks. Inbound shipments from vendor 2 will average
490
units with an average lead time of
2
weeksweeks.
Ruby-Star operates 52 weeks per year; it carries a
4-week
supply of inventory as safety stock and no anticipation inventory.
Part 2
a. The average aggregate inventory value of the product if Ruby-Star used vendor 1 exclusively is
$enter your response here.
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 $13.00 per bag. The
following information is available about these bags:
> Demand 75 bags/week
> Order cost = $52.00/order
> Annual holding cost = 20 percent of cost
> Desired cycle-service level = 80 percent
>Lead time = 5 weeks (30 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 75 bags is incorrect and actual demand averages only 50 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.)
Chapter 19 Solutions
EBK OPERATIONS MANAGEMENT
Ch. 19 - For which decision environment is linear...Ch. 19 - What is meant by the term feasible solution space?...Ch. 19 - Explain the term redundant constraint.Ch. 19 - Prob. 4DRQCh. 19 - Prob. 5DRQCh. 19 - Prob. 6DRQCh. 19 - Prob. 1PCh. 19 - Prob. 2PCh. 19 - Prob. 3PCh. 19 - A small candy shop is preparing for the holiday...
Ch. 19 - A retired couple supplement their income by making...Ch. 19 - Solve each of these problems by computer and...Ch. 19 - Prob. 7PCh. 19 - For Problem 6b: a. Find the range of feasibility...Ch. 19 - Prob. 9PCh. 19 - Prob. 10PCh. 19 - Prob. 11PCh. 19 - The manager of the deli section of a grocery...Ch. 19 - Prob. 13PCh. 19 - A chocolate maker has contracted to operate a...Ch. 19 - Prob. 15PCh. 19 - Prob. 16PCh. 19 - Prob. 1.1CQCh. 19 - Prob. 1.2CQCh. 19 - Prob. 1.3CQCh. 19 - Prob. 2.1CQCh. 19 - Prob. 2.2CQCh. 19 - Prob. 2.3CQCh. 19 - Prob. 2.4CQ
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