Question 1

The collection of all elements of interest in a study is _____.

Accepted Answer

A)  the population 
B)  the sampling 
C)  statistical inference 
D)  descriptive statistics

Question 2

A Scanner Data User Survey of 50 companies found that the average amount spent on scanner data per category of consumer goods was $387,325 (Mercer Management Consulting, Inc., April 24, 1997).The $387,325 is an example of _____.

Accepted Answer

A)  categorical data 
B)  quantitative data 
C)  a descriptive statistic 
D)  Both quantitative data and a descriptive statistic are correct.

Question 3

The term _____ is used to refer to the process of capturing, storing, and maintaining data.

Accepted Answer

A)  data warehousing 
B)  data mining 
C)  data analysis 
D)  data collection

Question 4

Data collected over several time periods are _____ data.

Accepted Answer

A)  time series 
B)  time-controlled 
C)  cross-sectional 
D)  time dependent

Question 5

The major applications of data mining have been made by companies with a strong _____ focus.

Accepted Answer

A)  consumer 
B)  manufacturing 
C)  exporting 
D)  research and development

Question 6

In a post office, the mailboxes are numbered from 1 to 5,000.These numbers represent _____.

Accepted Answer

A)  categorical data 
B)  time series data 
C)  cross-sectional data 
D)  quantitative data

Question 7

_____ analytics is the set of analytical techniques that yield a course of action.

Accepted Answer

A)  Descriptive 
B)  Predictive 
C)  Prescriptive 
D)  Data

Question 8

In an application for a credit card, potential customers are asked for their social security numbers.A social security number is an example of a _____.

Accepted Answer

A)  categorical variable 
B)  quantitative variable 
C)  categorical or quantitative variable, depending on how the respondents answered the question 
D)  ratio variable

Question 9

When the data are labels or names used to identify an attribute of the elements, the variable has which scale of measurement?

Accepted Answer

A)  nominal 
B)  ordinal 
C)  interval 
D)  ratio

Question 10

Statistical studies in which researchers control variables of interest are _____ studies.

Accepted Answer

A)  experimental 
B)  control observational 
C)  non-experimental 
D)  observational

Question 11

Income is an example of _____.

Accepted Answer

A)  categorical data 
B)  either categorical or quantitative data 
C)  currency data 
D)  quantitative data

Question 12

Statistical studies in which researchers do not control variables of interest are _____.

Accepted Answer

A)  experimental studies 
B)  uncontrolled experimental studies 
C)  not of any value 
D)  observational studies

Question 13

The owner of a factory regularly requests a graphical summary of all employees' salaries.The graphical summary of salaries is an example of _____.

Accepted Answer

A)  a sample 
B)  descriptive statistics 
C)  statistical inference 
D)  an experiment

Question 14

_____ analytics encompasses the set of analytical techniques that describe what has happened in the past.

Accepted Answer

A)  Descriptive 
B)  Predictive 
C)  Prescriptive 
D)  Data

Question 15

Which of the following is an example of categorical data?

Accepted Answer

A)  social security number 
B)  score on a multiple-choice exam 
C)  height, in meters, of a diving board 
D)  number of square feet of carpet

Question 16

The Department of Transportation of a city has noted that on the average there are 14 accidents per day.The average number of accidents is an example of _____.

Accepted Answer

A)  descriptive statistics 
B)  statistical inference 
C)  a sample 
D)  a population

Question 17

A portion of the population selected to represent the population is called _____.

Accepted Answer

A)  statistical inference 
B)  descriptive statistics 
C)  a census 
D)  a sample

Question 18

When the data are labels or names used to identify an attribute of the elements and the rank of the data is meaningful, the variable has which scale of measurement?

Accepted Answer

A)  nominal 
B)  ordinal 
C)  interval 
D)  ratio

Question 19

Exhibit 1-1
In a recent study based upon an inspection of 200 homes in Daisy City, 120 were found to violate one or more city codes.
-Refer to Exhibit 1-1.The Daisy City study is an example of the use of a _____.

Accepted Answer

A)  census 
B)  sample 
C)  probability 
D)  population

Question 20

Which of the following is NOT an example of descriptive statistics?

Accepted Answer

A)  a histogram depicting the age distribution for 30 randomly selected students 
B)  an estimate of the number of Alaska residents who have visited Canada 
C)  a table summarizing the data collected in a sample of new-car buyers 
D)  the proportion of mailed-out questionnaires that were returned

Exam 1: Data and Statistics

The collection of all elements of interest in a study is _____.

A Scanner Data User Survey of 50 companies found that the average amount spent on scanner data per category of consumer goods was $387,325 (Mercer Management Consulting, Inc., April 24, 1997) .The $387,325 is an example of _____.

The term _____ is used to refer to the process of capturing, storing, and maintaining data.

Data collected over several time periods are _____ data.

The major applications of data mining have been made by companies with a strong _____ focus.

In a post office, the mailboxes are numbered from 1 to 5,000.These numbers represent _____.

_____ analytics is the set of analytical techniques that yield a course of action.

In an application for a credit card, potential customers are asked for their social security numbers.A social security number is an example of a _____.

When the data are labels or names used to identify an attribute of the elements, the variable has which scale of measurement?

Statistical studies in which researchers control variables of interest are _____ studies.

Income is an example of _____.

Statistical studies in which researchers do not control variables of interest are _____.

The owner of a factory regularly requests a graphical summary of all employees' salaries.The graphical summary of salaries is an example of _____.

_____ analytics encompasses the set of analytical techniques that describe what has happened in the past.

Which of the following is an example of categorical data?

The Department of Transportation of a city has noted that on the average there are 14 accidents per day.The average number of accidents is an example of _____.

A portion of the population selected to represent the population is called _____.

When the data are labels or names used to identify an attribute of the elements and the rank of the data is meaningful, the variable has which scale of measurement?

Exhibit 1-1 In a recent study based upon an inspection of 200 homes in Daisy City, 120 were found to violate one or more city codes. -Refer to Exhibit 1-1.The Daisy City study is an example of the use of a _____.

Which of the following is NOT an example of descriptive statistics?