Operations Management (Comp. Instructor's Edition)
13th Edition
ISBN: 9781259948237
Author: Stevenson
Publisher: MCG
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Chapter 3, Problem 25P
The manager of a seafood restaurant was asked to establish a pricing policy on lobster dinners. Experimenting with prices produced the following data:
a. Plot the data and a regression line on the same graph.
b. Determine the correlation coefficient and interpret it.
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Global Bikes Inc. (a bicylce manufacturing firm) collected the following data during a study of consumer buying patterns.
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1
2
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5
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y=
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y
15
70
28
79
38
89
35
86
49 97
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y =
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24
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After graduation, you take a position at Top-Slice, a well-known manufacturer of golf balls. One of your duties is to
forecast monthly demand for golf balls. Using the following data, you developed a regression model that expresses
monthly sales as a function of average temperature for the month:
Monthly sales=-202.2+86.5x (average temperature)
Click the icon to view the additional data.
a. Show how the a and 6 values of -202.2 and 86.5 were calculated.
Calculate the slope coefficient, b (enter your responses as whole numbers).
(745)
12
12
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More Info
March 2017
April
May
June
July
August
September
October
November
December
January 2018
February
Monthly Sales
5,300
3,990
5,700
6,520
7,600
7,420
Print
6,710
4,870
3,990
3,900
3,320
2,670
Temperature
51
56
Done
64
80
79
87
83
67
58
41
39
40
X
After graduation, you take a position at Top-Slice, a well-known manufacturer of golf balls. One of your duties is to
forecast monthly demand for golf balls. Using the following data, you developed a regression model that expresses
monthly sales as a function of average temperature for the month:
Click the icon to view the additional data.
a. Show how the â and ɓ values of - 337.0 and 88.9 were calculated.
Calculate the slope coefficient, ɓ (enter your responses as whole numbers).
(755)(63110)
4252000
Б
12
= 88.9
(755)
50665
12
Monthly sales - 337.0+88.9 × (average temperature)
Calculate the intercept term, â (enter your responses rounded to one decimal place).
â= 5259.2 -88.9 × 62.92 = - 337.0
b. Use the regression forecasting model to forecast total golf ball sales for June and July 2018. Average temperatures are expected to be 73 degrees in June and 82 degrees in July.
The forecast of total golf ball sales for June 2018 is (Enter your response rounded to the nearest whole number.)…
Chapter 3 Solutions
Operations Management (Comp. Instructor's Edition)
Ch. 3.15 - Prob. 1.1RQCh. 3.15 - Prob. 1.2RQCh. 3.15 - Prob. 1.3RQCh. 3 - What are the main advantage that quantitative...Ch. 3 - What are some of the consequences of poor...Ch. 3 - List the specific weaknesses of each of these...Ch. 3 - Forecasts are generally wrong a. Why are forecasts...Ch. 3 - What is the purpose of establishing control limits...Ch. 3 - What factors would you consider in deciding...Ch. 3 - Contrast the use of MAD and MSE in evaluating...
Ch. 3 - What advantages as a forecasting tool does...Ch. 3 - How does the number of periods in a moving average...Ch. 3 - What factors enter into the choice of a value for...Ch. 3 - Prob. 11DRQCh. 3 - Explain how using a centered moving average with a...Ch. 3 - Contrast the terms sales and demand.Ch. 3 - Contrast the reactive and proactive approaches to...Ch. 3 - Explain how flexibility in production systems...Ch. 3 - How is forecasting in the context of a supply...Ch. 3 - Which type of forecasting approach, qualitative or...Ch. 3 - Prob. 18DRQCh. 3 - Choose the type of forecasting technique (survey,...Ch. 3 - Explain the trade-off between responsiveness and...Ch. 3 - Who needs to be involved in preparing forecasts?Ch. 3 - How has technology had an impact on forecasting?Ch. 3 - It has been said that forecasting using...Ch. 3 - What capability would an organization have to have...Ch. 3 - When a new business is started, or a patent idea...Ch. 3 - Discuss how you would manage a poor forecast.Ch. 3 - Omar has beard from some of his customers that...Ch. 3 - Give three examples of unethical conduct involving...Ch. 3 - A commercial baker, has recorded sales (in dozens)...Ch. 3 - National Scan, Inc., sells radio frequency...Ch. 3 - A dry cleaner uses exponential smoothing to...Ch. 3 - An electrical contractors records during the last...Ch. 3 - A cosmetics manufacturer s marketing department...Ch. 3 - Prob. 6PCh. 3 - Freight car loadings ova a 12-year period at a...Ch. 3 - Air travel on Mountain Airline for the past 18...Ch. 3 - a. Obtain the linear trend equation for the...Ch. 3 - After plotting demand for four periods, an...Ch. 3 - A manager of a store that sells and installs spas...Ch. 3 - The following equation summarizes the trend...Ch. 3 - Compute seasonal relatives for this data the SA...Ch. 3 - A tourist center is open on weekends (Friday,...Ch. 3 - The manager of a fashionable restaurant open...Ch. 3 - Obtain estimates of daily relatives for the number...Ch. 3 - A pharmacist has been monitoring sales of 2...Ch. 3 - New car sales for a dealer in Cook County,...Ch. 3 - The following table shows a tool and die companys...Ch. 3 - An analyst must decide between two different...Ch. 3 - Two different forecasting techniques (F1 and F2)...Ch. 3 - Two independent methods of forecasting based on...Ch. 3 - Long-Life Insurance has developed a linear model...Ch. 3 - Timely Transport provides local delivery service...Ch. 3 - The manager of a seafood restaurant was asked to...Ch. 3 - The following data were collected during a study...Ch. 3 - Lovely Lawns Inc., intends to use sales of lawn...Ch. 3 - The manager of a travel agency has been using a...Ch. 3 - Refer to the data in problem 22 a. Compute a...Ch. 3 - The classified department of a monthly magazine...Ch. 3 - A textbook publishing company has compiled data on...Ch. 3 - A manager has just receded an valuation from an...Ch. 3 - A manager uses this equation to predict demand for...Ch. 3 - A manager uses a trend equation plus quarterly...Ch. 3 - ML MANUFACTURING ML Manufacturing makes various...Ch. 3 - ML MANUFACTURING ML Manufacturing makes various...Ch. 3 - HIGHLINE FINANCIAL SERVICES, LTD. Highline...
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