13th Edition

ISBN: 9781305881884

Author: Anderson

Publisher: CENGAGE L

Concept explainers

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as p…

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Textbook Question

Chapter 1, Problem 25SE

Table 1.8 shows a data set containing information for 25 of the shadow stocks tracked by the American Association of Individual Investors. Shadow stocks are common stocks of smaller companies that are not closely followed by Wall Street analysts. The data set is also on the website that accompanies the text in the DATAfile named Shadow02.

a. How many variables are in the data set?
b. Which of the variables are categorical and which are quantitative?
c. For the Exchange variable, show the frequency and the percent frequency for AMEX, NYSE, and OTC. Construct a bar graph similar to Figure 1.4 for the Exchange variable.
d. Show the frequency distribution for the Gross Profit Margin using the five intervals: 0-14.9, 15-29.9, 30-44.9, 45-59.9, and 60-74.9. Construct a histogram similar to Figure 1.5.
e. What is the average price/earnings ratio?

TABLE 1.8 DATA SET FOR 25 SHADOW STOCKS

Company	Exchange	Ticker Symbol	Market Cap ($ millions)	Price/Earnings Ratio	(.»ross Profit Margin (%)
DeWolfe Companies	AMEX	DWL	36.4	8.4	36.7
North Coast Energy	OTC	NCEB	52.5	6.2	59.3
Hansen Natural Corp.	OTC	HANS	41.1	14.6	44.8
MarineMax, Inc.	NYSE	HZO	111.5	7.2	23.8
Nanometrics Incorporated	OTC	NANO	228.6	38.0	53.3
TeamStaff, Inc.	OTC	TSTF	92.1	33.5	4.1
Environmental Tectonics	AMEX	ETC	51.1	35.8	35.9
Measurement Specialties	AMEX	MSS	101.8	26.8	37.6
SEMCO Energy, Inc.	NYSE	SEN	193.4	18.7	23.6
Party City Corporation	OTC	PCTY	97.2	15.9	36.4
Embrex, Inc.	OTC	EMBX	136.5	18.9	59.5
Tech/Ops Sevcon, Inc.	AMEX	TO	23.2	20.7	35.7
ARCADES NV	OTC	ARCAF	173.4	8.8	9.6
Qiao Xing Universal Tele.	OTC	XING	64.3	22.1	30.8
Energy West Incorporated	OTC	EWST	29.1	9.7	16.3
Barnwell Industries. Inc.	AMEX	BRN	27.3	7.4	73.4
Innodata Corporation	OTC	INOD	66.1	11.0	29.6
Medical Action Industries	OTC	MDCI	13(7.1	26.9	30.6
Instrumentarium Corp.	OTC	INMRY	240.9	3.6	52.1
Petroleum Development	OTC	PETD	95.9	6.1	19.4
Drexler Technology Corp.	OTC	DRXR	233.6	45.6	53.6
Gerber Childrenswear Inc.	NYSE	GCW	126.9	7.9	25.8
Gaiam, Inc.	OTC	GAIA	295.5	68.2	60.7
Artesian Resources Corp.	OTC	ARTNA	62.8	20.5	45.5
York Water Company	OTC	YORW	92.2	22.9	74.2

Expert Solution & Answer

Chapter 1 Solutions

STATISTICS F/BUSINESS+ECONOMICS-TEXT

Ch. 1 - Discuss the differences between statistics as...Ch. 1 - Tablet PC Comparison provides a wide variety of...Ch. 1 - Refer to Table 1.6. a. What is the average cost...Ch. 1 - Table 1.7 shows data for eight cordless telephones...Ch. 1 - Refer to the data set in Table 1.7. a. What is the...Ch. 1 - J.D. Power and Associates surveys new automobile...Ch. 1 - The Kroger Company is one of the largest grocery...Ch. 1 - The Tennessean, an online newspaper located in...Ch. 1 - The Commerce Department reported receiving the...Ch. 1 - The Bureau of Transportation Statistics Omnibus...

Ch. 1 - In a Gallup telephone survey conducted on April...Ch. 1 - The Hawaii Visitors Bureau collects data on...Ch. 1 - Figure 1.7 provides a bar chart showing the annual...Ch. 1 - The following data show the number of rental cars...Ch. 1 - Every year, the U.S. Coast Guard collects data and...Ch. 1 - A manager of a large corporation recommends a...Ch. 1 - A random telephone survey of 1021 adults (aged 18...Ch. 1 - A Bloomberg Businessweek North American subscriber...Ch. 1 - A survey of 131 investment managers in Barrons Big...Ch. 1 - A seven-year medical research study reported that...Ch. 1 - A survey conducted by Better Homes and Gardens...Ch. 1 - Pew Research Center is a nonpartisan polling...Ch. 1 - A sample of midterm grades for five students...Ch. 1 - Table 1.8 shows a data set containing information...

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