Practical Operations Management
2nd Edition
ISBN: 9781939297136
Author: Simpson
Publisher: HERCHER PUBLISHING,INCORPORATED
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Chapter 4, Problem 2.1Q
Summary Introduction
Interpretation: The
Concept Introduction: The following formula will be used-
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Lenovo uses the ZX-81 chip in some of its laptop computers. The prices for the chip during the last 12
months were as follows:
Month
January
February
March
April
May
June
Price Per Chip
$1.90
$1.61
$1.60
$1.85
$1.90
$1.95
Month
Mar Apr May
Forecast $1.76 1.61 1.73
Month
July
August
Jun
1.88
September
October
November
December
This exercise contains only parts a, b, and c.
a) Using a 2-month moving average, the forecast for periods 11 and 12 is (round your responses to two
decimal places):
Price Per Chip
$2.00
$1.85
$1.70
$1.55
$1.50
$1.75
Jul Aug Sep Oct Nov Dec
1.93 1.98
1.93
1.78
shipped and total shipping costs:
Number of
Units
Shipped
75
60
40
20
70
80
50
Month
January
February
March
April
May
June
July
Required:
3. Using the high-low method, calculate Odessa's total fixed shipping costs and variable shipping cost per unit.
4. Perform a least-squares regression analysis on Odessa's data.
5. sing the regression output, create a linear equation (y= a + bx) for estimating Odessa's shipping costs.
Complete this question by entering your answers in the tabs below.
Required 3 Required 4
Total
Shipping
Cost
$3,250
2,300
1,700
1,200
2,300
2,700
2,000
Required 5
Using the high-low method, calculate Odessa's total fixed shipping costs and variable shipping cost per unit.
Fixed cost
Variable cost per unit
Complete this question by entering your answers in the tabs below.
Required 3 Required 4 Required 5
Intercept
X Variable
Perform a least-squares regression analysis on Odessa's data.
Note: Use Microsoft Excel or a statistical package to find the coefficients using
to 2…
Q3: George Kyparisis owns a company that manufactures sailboats. Actual demand for Georg's sailboats
during each of the past four seasons was as follows:
Year
Seasons
1
2
3
4
Winter
1400
1200
1000
900
Spring
1500
1400
1600
1500
Summer
1000
2100
2000
1900
Fall
600
750
650
500
George has forecasted that annual demand for his sailboats in year 5 will equal 5600 sailboats. Based on
this data and the multiplicative seasonal model, what will the demand level be for George's sailboats in
the spring of year 5?
Chapter 4 Solutions
Practical Operations Management
Ch. 4 - Prob. 1DQCh. 4 - Prob. 2DQCh. 4 - Prob. 3DQCh. 4 - Prob. 4DQCh. 4 - Prob. 1PCh. 4 - Prob. 2PCh. 4 - Prob. 3PCh. 4 - Prob. 4PCh. 4 - Prob. 5PCh. 4 - Prob. 6P
Ch. 4 - Prob. 7PCh. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - Prob. 10PCh. 4 - Prob. 11PCh. 4 - Prob. 12PCh. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - Prob. 20PCh. 4 - Prob. 21PCh. 4 - Prob. 22PCh. 4 - Prob. 23PCh. 4 - Prob. 24PCh. 4 - Prob. 25PCh. 4 - Prob. 26PCh. 4 - Prob. 27PCh. 4 - Prob. 28PCh. 4 - Prob. 29PCh. 4 - Prob. 30PCh. 4 - Prob. 31PCh. 4 - Prob. 32PCh. 4 - Prob. 1.1QCh. 4 - Prob. 1.2QCh. 4 - Prob. 1.3QCh. 4 - Prob. 1.4QCh. 4 - Prob. 2.1QCh. 4 - Prob. 2.2QCh. 4 - Prob. 2.3QCh. 4 - Prob. 2.4QCh. 4 - Prob. 3.1QCh. 4 - Prob. 3.2QCh. 4 - Prob. 3.3Q
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- Scenario 3 Ben Gibson, the purchasing manager at Coastal Products, was reviewing purchasing expenditures for packaging materials with Jeff Joyner. Ben was particularly disturbed about the amount spent on corrugated boxes purchased from Southeastern Corrugated. Ben said, I dont like the salesman from that company. He comes around here acting like he owns the place. He loves to tell us about his fancy car, house, and vacations. It seems to me he must be making too much money off of us! Jeff responded that he heard Southeastern Corrugated was going to ask for a price increase to cover the rising costs of raw material paper stock. Jeff further stated that Southeastern would probably ask for more than what was justified simply from rising paper stock costs. After the meeting, Ben decided he had heard enough. After all, he prided himself on being a results-oriented manager. There was no way he was going to allow that salesman to keep taking advantage of Coastal Products. Ben called Jeff and told him it was time to rebid the corrugated contract before Southeastern came in with a price increase request. Who did Jeff know that might be interested in the business? Jeff replied he had several companies in mind to include in the bidding process. These companies would surely come in at a lower price, partly because they used lower-grade boxes that would probably work well enough in Coastal Products process. Jeff also explained that these suppliers were not serious contenders for the business. Their purpose was to create competition with the bids. Ben told Jeff to make sure that Southeastern was well aware that these new suppliers were bidding on the contract. He also said to make sure the suppliers knew that price was going to be the determining factor in this quote, because he considered corrugated boxes to be a standard industry item. As the Marketing Manager for Southeastern Corrugated, what would you do upon receiving the request for quotation from Coastal Products?arrow_forwardScenario 4 Sharon Gillespie, a new buyer at Visionex, Inc., was reviewing quotations for a tooling contract submitted by four suppliers. She was evaluating the quotes based on price, target quality levels, and delivery lead time promises. As she was working, her manager, Dave Cox, entered her office. He asked how everything was progressing and if she needed any help. She mentioned she was reviewing quotations from suppliers for a tooling contract. Dave asked who the interested suppliers were and if she had made a decision. Sharon indicated that one supplier, Apex, appeared to fit exactly the requirements Visionex had specified in the proposal. Dave told her to keep up the good work. Later that day Dave again visited Sharons office. He stated that he had done some research on the suppliers and felt that another supplier, Micron, appeared to have the best track record with Visionex. He pointed out that Sharons first choice was a new supplier to Visionex and there was some risk involved with that choice. Dave indicated that it would please him greatly if she selected Micron for the contract. The next day Sharon was having lunch with another buyer, Mark Smith. She mentioned the conversation with Dave and said she honestly felt that Apex was the best choice. When Mark asked Sharon who Dave preferred, she answered, Micron. At that point Mark rolled his eyes and shook his head. Sharon asked what the body language was all about. Mark replied, Look, I know youre new but you should know this. I heard last week that Daves brother-in-law is a new part owner of Micron. I was wondering how soon it would be before he started steering business to that company. He is not the straightest character. Sharon was shocked. After a few moments, she announced that her original choice was still the best selection. At that point Mark reminded Sharon that she was replacing a terminated buyer who did not go along with one of Daves previous preferred suppliers. What does the Institute of Supply Management code of ethics say about financial conflicts of interest?arrow_forwardScenario 4 Sharon Gillespie, a new buyer at Visionex, Inc., was reviewing quotations for a tooling contract submitted by four suppliers. She was evaluating the quotes based on price, target quality levels, and delivery lead time promises. As she was working, her manager, Dave Cox, entered her office. He asked how everything was progressing and if she needed any help. She mentioned she was reviewing quotations from suppliers for a tooling contract. Dave asked who the interested suppliers were and if she had made a decision. Sharon indicated that one supplier, Apex, appeared to fit exactly the requirements Visionex had specified in the proposal. Dave told her to keep up the good work. Later that day Dave again visited Sharons office. He stated that he had done some research on the suppliers and felt that another supplier, Micron, appeared to have the best track record with Visionex. He pointed out that Sharons first choice was a new supplier to Visionex and there was some risk involved with that choice. Dave indicated that it would please him greatly if she selected Micron for the contract. The next day Sharon was having lunch with another buyer, Mark Smith. She mentioned the conversation with Dave and said she honestly felt that Apex was the best choice. When Mark asked Sharon who Dave preferred, she answered, Micron. At that point Mark rolled his eyes and shook his head. Sharon asked what the body language was all about. Mark replied, Look, I know youre new but you should know this. I heard last week that Daves brother-in-law is a new part owner of Micron. I was wondering how soon it would be before he started steering business to that company. He is not the straightest character. Sharon was shocked. After a few moments, she announced that her original choice was still the best selection. At that point Mark reminded Sharon that she was replacing a terminated buyer who did not go along with one of Daves previous preferred suppliers. What should Sharon do in this situation?arrow_forward
- Scenario 4 Sharon Gillespie, a new buyer at Visionex, Inc., was reviewing quotations for a tooling contract submitted by four suppliers. She was evaluating the quotes based on price, target quality levels, and delivery lead time promises. As she was working, her manager, Dave Cox, entered her office. He asked how everything was progressing and if she needed any help. She mentioned she was reviewing quotations from suppliers for a tooling contract. Dave asked who the interested suppliers were and if she had made a decision. Sharon indicated that one supplier, Apex, appeared to fit exactly the requirements Visionex had specified in the proposal. Dave told her to keep up the good work. Later that day Dave again visited Sharons office. He stated that he had done some research on the suppliers and felt that another supplier, Micron, appeared to have the best track record with Visionex. He pointed out that Sharons first choice was a new supplier to Visionex and there was some risk involved with that choice. Dave indicated that it would please him greatly if she selected Micron for the contract. The next day Sharon was having lunch with another buyer, Mark Smith. She mentioned the conversation with Dave and said she honestly felt that Apex was the best choice. When Mark asked Sharon who Dave preferred, she answered, Micron. At that point Mark rolled his eyes and shook his head. Sharon asked what the body language was all about. Mark replied, Look, I know youre new but you should know this. I heard last week that Daves brother-in-law is a new part owner of Micron. I was wondering how soon it would be before he started steering business to that company. He is not the straightest character. Sharon was shocked. After a few moments, she announced that her original choice was still the best selection. At that point Mark reminded Sharon that she was replacing a terminated buyer who did not go along with one of Daves previous preferred suppliers. Ethical decisions that affect a buyers ethical perspective usually involve the organizational environment, cultural environment, personal environment, and industry environment. Analyze this scenario using these four variables.arrow_forwardExplain the Simple Linear Regression?arrow_forwardGeorge Kyparisis owns a company that manufactures sailboats. Actual demand for George's sailboats during each of the past four seasons was as follows: Season Winter Spring Summer Fall 1 1,440 1,560 1,040 640 2 1,280 1,440 2,120 750 Year 3 1,080 1,620 2,020 650 4 920 1,500 1,960 560 George has forecasted that annual demand for his sailboats in year 5 will equal 6,000 sailboats. Based on the given data and using the seasonal model, the demand level for George's sailboats in the spring of year 5 will be sailboats (enter your final answer as a whole number and round all intermediate calculations to two decimal places). ib the ng a rom Earrow_forward
- Sales of industrial vacuum cleaners at Yarena Supply CO. over the past 13 months are as follows: Sales in P1,000 Month Sales in P1,000 Month 11 January 14 August 14 February 17 September 15 March 12 October 10 April 14 November 15 May 16 December 17 June 11 January 11 July Required suing a moving average with three periods, determine the demand for vacuum cleaners for next February?arrow_forwardDevelop a quantitative forecast model for Jacob. Which modeling technique did you choose, and why? What are the assumptions behind your model?arrow_forwardWhat are the benefits of exponential smoothing over moving average forecasting?arrow_forward
- What should be our forecast accuracy target if there is a high degree of volatility in customer orders and long lead times?arrow_forwardCRUISE MINI CASE: Sunshine Cruise Lines is a cruise operator that offers three- to seven-day cruises along five Caribbean routes. It has developed a reputation as a party cruise operator and the majority of its revenue comes from vacationing college students. This type of customer demand is highly cyclical, and Sunshine finds that repeat purchase is high while its consumers are in college, but practically disappears after graduation. In an effort to encourage its customers to continue taking Sunshine Cruises after they have graduated, the cruise operator has begun offering Adventure Cruises, with port stops on islands known for eco-tourism and biodiversity, both on land and off shore, appealing to young professionals who like to hike and scuba dive or snorkel. In contrast to its party cruises, Sunshine focuses its marketing message for Adventure Cruises on activities at port stops and the convenience of being able to explore several Caribbean destinations from the comfort of a single…arrow_forwardSuppose a four period weighted average is being used to forecast demand. Weights for the periods are: Wt-4 = 0.1 Wt-3 = 0.2 Wt-2 = 0.3 Wt-1 0.4 Demand observed in the previous four periods was: At-4 = 325 At-3 = 361 At-2 = 478 At-1 = 400 What will be the demand forecast for period t? (Keep one decimal place in your answer).arrow_forward
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