Question 1

The nominal scale of measurement has the properties of the

Accepted Answer

A) ordinal scale 
B) only interval scale 
C) ratio scale 
D) None of these alternatives is correct. 
A) ordinal scale 
B) only interval scale 
C) ratio scale 
D) None of these alternatives is correct.

Question 2

Temperature is an example of

Accepted Answer

A) a categorical variable 
B) a quantitative variable 
C) either a quantitative or categorical variable 
D) neither a quantitative nor categorical variable 
A) a categorical variable 
B) a quantitative variable 
C) either a quantitative or categorical variable 
D) neither a quantitative nor categorical variable

Question 3

Categorical data

Accepted Answer

A) indicate either how much or how many 
B) cannot be numeric 
C) are labels used to identify attributes of elements 
D) must be nonnumeric 
A) indicate either how much or how many 
B) cannot be numeric 
C) are labels used to identify attributes of elements 
D) must be nonnumeric

Question 4

A population is

Accepted Answer

A) the same as a sample 
B) the selection of a random sample 
C) the collection of all items of interest in a particular study 
D) always the same size as the sample 
A) the same as a sample 
B) the selection of a random sample 
C) the collection of all items of interest in a particular study 
D) always the same size as the sample

Question 5

The following table shows the age distribution of a sample of 180 students at a local college.
AGE DISTRIBUTION OF
180 STUDENTS AT A LOCAL COLLEGE
Age of Students Number of Students
15 - 19 36
20 - 24 44
25 - 29 60
30 - 34 38
35 - 39 2
Total 180
a.Of the students in the sample, what percentage is younger than 20 years of age?
b.What percentage is at least 30 years of age?
c.Based on this sample, what percentage of the students at the college do you estimate to be younger than 25 years of age?

Accepted Answer

a.20%
b.22

Question 6

In a post office, the mailboxes are numbered from 1 to 4,500. These numbers represent

Accepted Answer

A) categorical data 
B) quantitative data 
C) either categorical or quantitative data 
D) since the numbers are sequential, the data is quantitative 
A) categorical data 
B) quantitative data 
C) either categorical or quantitative data 
D) since the numbers are sequential, the data is quantitative

Question 7

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

Question 8

In observational studies, the variable of interest

Accepted Answer

A) is not controlled 
B) is controlled 
C) must be numerical 
D) cannot be numerical 
A) is not controlled 
B) is controlled 
C) must be numerical 
D) cannot be numerical

Question 9

Which of the following can be classified as quantitative data?

Accepted Answer

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

Question 10

The set of measurements collected for a particular element is (are) called

Accepted Answer

A) variables 
B) observations 
C) samples 
D) None of these alternatives is correct. 
A) variables 
B) observations 
C) samples 
D) None of these alternatives is correct.

Question 11

Exhibit 1-2
In a sample of 1,600 registered voters, 912, or 57%, approve of the way the President is doing his job.
-Refer to Exhibit 1-2. The 57% approval is an example of

Accepted Answer

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

Question 12

The scale of measurement that has an inherent zero value defined is the

Accepted Answer

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

Question 13

All the data collected in a particular study are referred to as the

Accepted Answer

A) inference 
B) variable 
C) data set 
D) None of these alternatives is correct. 
A) inference 
B) variable 
C) data set 
D) None of these alternatives is correct.

Question 14

The interval scale of measurement has the properties of the

Accepted Answer

A) ratio and nominal scales 
B) ratio and ordinal scales 
C) ratio scale 
D) None of these alternatives is correct. 
A) ratio and nominal scales 
B) ratio and ordinal scales 
C) ratio scale 
D) None of these alternatives is correct.

Question 15

In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of the

Accepted Answer

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

Question 16

The entities on which data are collected are

Accepted Answer

A) elements 
B) populations 
C) samples 
D) None of these alternatives is correct. 
A) elements 
B) populations 
C) samples 
D) None of these alternatives is correct.

Question 17

After graduation ceremonies at a university, six graduates were asked whether they were in favor of (identified by 1) or against (identified by 0) abortion. Some information about these graduates is shown below.
   
a.How many elements are in the data set?
b.How many variables are in the data set?
c.How many observations are in the data set?
d.Which of the above variables (Sex, Age, Abortion Issue, Class rank) are categorical and which are quantitative variables?
e.
Are arithmetic operations appropriate for the variable "abortion issue"?

Accepted Answer

a.6
b.4
c.6
d.Sex: categorical

Question 18

How many scales of measurement exist?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 19

Exhibit 1-3
Part of the data bank of a corporation is shown below.
  
-Refer to Exhibit 1-3. Employee Rank is an example of ________ data.

Accepted Answer

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

Question 20

The Department of Transportation of a city has noted that on the average there are 17 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 
A) descriptive statistics 
B) statistical inference 
C) a sample 
D) a population

The nominal scale of measurement has the properties of the

Temperature is an example of

Categorical data

A population is

In a post office, the mailboxes are numbered from 1 to 4,500. These numbers represent

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

In observational studies, the variable of interest

Which of the following can be classified as quantitative data?

The set of measurements collected for a particular element is (are) called

Exhibit 1-2 In a sample of 1,600 registered voters, 912, or 57%, approve of the way the President is doing his job. -Refer to Exhibit 1-2. The 57% approval is an example of

The scale of measurement that has an inherent zero value defined is the

All the data collected in a particular study are referred to as the

The interval scale of measurement has the properties of the

In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of the

The entities on which data are collected are

How many scales of measurement exist?

Exhibit 1-3 Part of the data bank of a corporation is shown below. -Refer to Exhibit 1-3. Employee Rank is an example of ________ data.

The Department of Transportation of a city has noted that on the average there are 17 accidents per day. The average number of accidents is an example of

Descriptive Statistics: Tabular and Graphical Presentations

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Comparisons Involving Means, Experimental Design and Analysis of Variance

Comparisons Involving Proportions and a Test of Independence

Simple Linear Regression

Multiple Regression

Filters

Exam 1: Data and Statistics

The nominal scale of measurement has the properties of the

Temperature is an example of

Categorical data

A population is

In a post office, the mailboxes are numbered from 1 to 4,500. These numbers represent

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

In observational studies, the variable of interest

Which of the following can be classified as quantitative data?

The set of measurements collected for a particular element is (are) called

Exhibit 1-2 In a sample of 1,600 registered voters, 912, or 57%, approve of the way the President is doing his job. -Refer to Exhibit 1-2. The 57% approval is an example of

The scale of measurement that has an inherent zero value defined is the

All the data collected in a particular study are referred to as the

The interval scale of measurement has the properties of the

In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of the

The entities on which data are collected are

How many scales of measurement exist?

Exhibit 1-3 Part of the data bank of a corporation is shown below. -Refer to Exhibit 1-3. Employee Rank is an example of ________ data.

The Department of Transportation of a city has noted that on the average there are 17 accidents per day. The average number of accidents is an example of

Descriptive Statistics: Tabular and Graphical Presentations

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Comparisons Involving Means, Experimental Design and Analysis of Variance

Comparisons Involving Proportions and a Test of Independence

Simple Linear Regression

Multiple Regression

Filters