Applied Statistics in Business and Economics
5th Edition
ISBN: 9781259329050
Author: DOANE
Publisher: MCG
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Textbook Question
Chapter 2, Problem 1CR
Define (a) data, (b) data set (c) observation, and (d) variable.
a.
Expert Solution
To determine
Give the definition of data.
Explanation of Solution
Data:
Data is defined as a collection of items that an investigator studies. The term ‘data’ is used as a plural. The data is usually entered in a database in the form of a matrix.
b.
Expert Solution
To determine
Give the definition of data set.
Explanation of Solution
Data set:
A data set is the particular set of data that is being studied. It is a set of all variable values corresponding to all the observations under study.
c.
Expert Solution
To determine
Give the definition of observation.
Explanation of Solution
Observation:
An observation is defined as an entity in the collection of all items that are being studied by the investigator.
d.
Expert Solution
To determine
Give the definition of variable.
Explanation of Solution
Variable:
A variable is defined as a characteristic of each observation or each entity that is being studied by the investigator.
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Students have asked these similar questions
The following data show the year to date percent change (YTD % Change) for 30 stock-market indexes from around the word (The Wall Street Journal, August 26, 2013).
Click on the datafile logo to reference the data.
DATA file
Country
Australia
Index
S&P/ASX200
YTD % Change
10.2
Belgium
Bel-20
12.6
Brazil
São Paulo Bovespa
-14.4
Canada
S&P/TSX Comp
2.6
Chile
Santiago IPSA
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China
Shanghai Composite
-9.3
Eurozone
EURO Stoxx
10.0
France
CAC 40
11.8
Germany
DAX
10.6
Hong Kong
Hang Seng
-3.5
India
S&P BSE Sensex
-4.7
Israel
Tel Aviv
1.3
Italy
FTSE MIB
6.6
Japan
Nikkei
31.4
Mexico
IPC All-Share
-6.4
Netherlands
AEX
9.3
Singapore
Straits Times
-2.5
South Korea
Kospi
-6.4
Spain
IBEX 35
6.4
Sweden
Switzerland
SX All Share
13.8
Swiss Market
17.4
Taiwan
Weighted
2.3
U.K.
FTSE 100
10.1
U.S.
S&P 500
16.6
U.S.
DJIA
14.5
U.S.
Dow Jones Utility
6.6
U.S.
Nasdaq 100
17.4
U.S.
Nasdaq Composite
21.1
World
DJ Global ex U.S.
4.2
World
DJ Global Index
9.9
a. What index has the largest positive YTD %…
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Chapter 2 Solutions
Applied Statistics in Business and Economics
Ch. 2.1 - What type of data (categorical, discrete...Ch. 2.1 - What type of data (categorical, discrete...Ch. 2.1 - What type of data (categorical, discrete...Ch. 2.1 - (a) Give three original examples of discrete data,...Ch. 2.1 - Which type of data (cross-sectional or time...Ch. 2.1 - Which type of data (cross-sectional or time...Ch. 2.1 - Prob. 7SECh. 2.1 - Give an original example of a time series variable...Ch. 2.2 - Which measurement level (nominal, ordinal,...Ch. 2.2 - Which measurement level (nominal, ordinal,...
Ch. 2.2 - Which measurement level (nominal, ordinal,...Ch. 2.2 - Which measurement level (nominal, ordinal,...Ch. 2.2 - Vail Resorts uses various types of scales and...Ch. 2.2 - (a) Would the measurement level for the data...Ch. 2.3 - Would you use a sample or a census to measure each...Ch. 2.3 - Would you use a sample or a census to measure each...Ch. 2.3 - The target population is all stocks in the SP 500...Ch. 2.4 - The target population is all students in your...Ch. 2.4 - Prob. 19SECh. 2.4 - Suppose you want to study the number of e-mail...Ch. 2.4 - In Excel, type a list containing names for 10 of...Ch. 2.6 - What sources of error might you encounter if you...Ch. 2.6 - What kind of survey (mail, telephone, interview,...Ch. 2.6 - What kind of survey (mail, telephone, interview,...Ch. 2.6 - Prob. 27SECh. 2.6 - What problems are evident in the wording of these...Ch. 2 - Define (a) data, (b) data set (c) observation, and...Ch. 2 - How do business data differ from scientific...Ch. 2 - Distinguish (a) univariate, bivariate, and...Ch. 2 - Define the four measurement levels and give an...Ch. 2 - Prob. 5CRCh. 2 - (a) List three reasons why a census might be...Ch. 2 - Prob. 7CRCh. 2 - (a) List four methods of random sampling. (b) List...Ch. 2 - List five (a) steps in a survey, (b) issues in...Ch. 2 - Prob. 10CRCh. 2 - Prob. 29CECh. 2 - Prob. 30CECh. 2 - Prob. 31CECh. 2 - Which measurement level (nominal, ordinal,...Ch. 2 - Below are five questions from a survey of MBA...Ch. 2 - Below are five questions from a survey of MBA...Ch. 2 - Below are five questions from a survey of MBA...Ch. 2 - Prob. 36CECh. 2 - Identify the following data as either time series...Ch. 2 - Would you use a sample or a census to measure each...Ch. 2 - Would you use a sample or census to measure each...Ch. 2 - Is each of the following a parameter or a...Ch. 2 - Prob. 41CECh. 2 - Prob. 42CECh. 2 - Prob. 43CECh. 2 - Prob. 44CECh. 2 - The IRS estimates that the average taxpayer spent...Ch. 2 - The General Accounting Office conducted random...Ch. 2 - Arsenic (a naturally occurring, poisonous metal)...Ch. 2 - Prob. 48CECh. 2 - Would you expect Noodles Company to use a sample...Ch. 2 - Prob. 50CECh. 2 - Examine each of the following statistics. Which...Ch. 2 - The National Claims History (NCH) contains records...Ch. 2 - Prior to starting a recycling program, a city...Ch. 2 - A university wanted to survey alumni about their...Ch. 2 - To protect baby scallops and ensure the survival...Ch. 2 - Prob. 56CECh. 2 - Households can sign up for a telemarketing no-call...Ch. 2 - What level of measurement (nominal, ordinal,...Ch. 2 - Insurance companies are rated by several rating...Ch. 2 - A tabletop survey by a restaurant asked the...Ch. 2 - Give two original examples of (a) discrete data...Ch. 2 - Prob. 64CECh. 2 - Below are 64 names of employees at NilCo. Colors...Ch. 2 - From the display below, pick five cards (without...Ch. 2 - Prob. 69CECh. 2 - You can test Excels algorithm for selecting random...
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