Question 1

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 B

Question 2

The ratio scale of measurement has the properties of

Accepted Answer

A) only the ordinal scale 
B) only the nominal scale 
C) the rank scale 
D) the interval scale 
A) only the ordinal scale 
B) only the nominal scale 
C) the rank scale 
D) the interval scale D

Question 3

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

Accepted Answer

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

Question 4

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 5

Categorical data

Accepted Answer

A) must be numeric 
B) must be nonnumeric 
C) cannot be numeric 
D) may be either numeric or nonnumeric 
A) must be numeric 
B) must be nonnumeric 
C) cannot be numeric 
D) may be either numeric or nonnumeric

Question 6

The following information regarding a sample of seven students is provided.   
a.How many elements are in the above data set?
b.How many variables are in this data set?
c.How many observations are in this data set?
d.Which variables are categorical and which are quantitative variables?
e.What measurement scale is used for each variable?

Accepted Answer

a.7
b.5
c.7
d.Grade point average is qua

Question 7

A recent issue of Fortune Magazine reported that the following companies had the lowest sales per employee among the Fortune 500 companies.   
a.How many elements are in the above data set?
b.How many variables are in the above data set?
c.How many observations are in the above data set?
d.Name the variables and indicate whether they are categorical or quantitative.

Accepted Answer

a.5
b.2
c.5
d.Sales

Question 8

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 9

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 10

The weight of a candy bar in ounces is an example of

Accepted Answer

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

Question 11

Statistical studies in which researchers control variables of interest are

Accepted Answer

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

Question 12

Data obtained from a nominal scale

Accepted Answer

A) must be alphabetic 
B) can be either numeric or nonnumeric 
C) must be numeric 
D) must rank order the data 
A) must be alphabetic 
B) can be either numeric or nonnumeric 
C) must be numeric 
D) must rank order the data

Question 13

The ordinal scale of measurement has the properties of the

Accepted Answer

A) ratio scale 
B) interval scale 
C) nominal scale 
D) ratio and interval scales 
A) ratio scale 
B) interval scale 
C) nominal scale 
D) ratio and interval scales

Question 14

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 15

The number of cases will always be the same as the number of

Accepted Answer

A) variables 
B) elements 
C) data sets 
D) data 
A) variables 
B) elements 
C) data sets 
D) data

Question 16

Exhibit 1-1
In a recent study based upon an inspection of 200 homes in Daisy City, 80 were found to violate one or more city codes.
-Refer to Exhibit 1-1. The city manager released a statement that 40% of Daisy City's 2,000 homes are in violation of city codes. The manager's statement is an example of

Accepted Answer

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

Question 17

In experimental 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 18

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 19

The sample size

Accepted Answer

A) can be larger than the population size 
B) is always smaller than the population size 
C) can be larger or smaller than the population size 
D) is always equal to the size of the population 
A) can be larger than the population size 
B) is always smaller than the population size 
C) can be larger or smaller than the population size 
D) is always equal to the size of the population

Question 20

A characteristic of interest for the elements is called a(n)

Accepted Answer

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

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

The ratio scale of measurement has the properties of

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

Categorical data

Categorical data

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

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

The weight of a candy bar in ounces is an example of

Statistical studies in which researchers control variables of interest are

Data obtained from a nominal scale

The ordinal scale of measurement has the properties of the

The number of cases will always be the same as the number of

In experimental studies, the variable of interest

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 sample size

A characteristic of interest for the elements is called a(n)

Descriptive Statistics: Tabular and Graphical Displays

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Test of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Regression Analysis: Model Building

Time Series Analysis and Forecasting

Nonparametric Methods

Statistical Methods for Quality Control

Index Numbers

Decision Analysis on Website

Sample Survey on Website

Filters

Exam 1: Data and Statistics

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

The ratio scale of measurement has the properties of

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

Categorical data

Categorical data

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

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

The weight of a candy bar in ounces is an example of

Statistical studies in which researchers control variables of interest are

Data obtained from a nominal scale

The ordinal scale of measurement has the properties of the

The number of cases will always be the same as the number of

In experimental studies, the variable of interest

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 sample size

A characteristic of interest for the elements is called a(n)

Descriptive Statistics: Tabular and Graphical Displays

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Test of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Regression Analysis: Model Building

Time Series Analysis and Forecasting

Nonparametric Methods

Statistical Methods for Quality Control

Index Numbers

Decision Analysis on Website

Sample Survey on Website

Filters