Question 1

Census refers to

Accepted Answer

A) an experimental study to collect data on the entire population 
B) an experimental study to collect data on a sample 
C) a survey to collect data on a sample 
D) a survey to collect data on the entire population 
A) an experimental study to collect data on the entire population 
B) an experimental study to collect data on a sample 
C) a survey to collect data on a sample 
D) a survey to collect data on the entire population

Question 2

Quantitative data

Accepted Answer

A) are always nonnumeric 
B) may be either numeric or nonnumeric 
C) are always numeric 
D) None of these alternatives is correct. 
A) are always nonnumeric 
B) may be either numeric or nonnumeric 
C) are always numeric 
D) None of these alternatives is correct.

Question 3

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 4

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 5

The following information regarding the top eight Fortune 500 companies was presented in an issue of Fortune Magazine.
   
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.10
b.4
c.10
d.Sales and Prof

Question 6

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 7

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

Question 8

In Excel,a worksheet that displays the formulas used to create the results is a

Accepted Answer

A) results worksheet 
B) formula worksheet 
C) value worksheet 
D) sample worksheet 
A) results worksheet 
B) formula worksheet 
C) value worksheet 
D) sample worksheet

Question 9

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 10

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 aver

Question 11

In a sample of 400 students in a university,80,or 20%,are Business majors.Based on the above information,the school's paper reported that "20% of all the students at the university are Business majors." This report is an example of

Accepted Answer

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

Question 12

For ease of data entry into a university database,1 denotes that the student is an undergraduate and 2 indicates that the student is a graduate student.In this case data are

Accepted Answer

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

Question 13

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

Question 14

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

Accepted Answer

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

Question 15

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

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 manager's statement that 40% of Daisy City's 2,000 homes are in violation of city codes is

Accepted Answer

A) an exactly correct statement 
B) only an approximation,since it is based upon sample information 
C) obviously wrong,since it is based upon a study of only 200 homes 
D) None of these alternatives is correct. 
A) an exactly correct statement 
B) only an approximation,since it is based upon sample information 
C) obviously wrong,since it is based upon a study of only 200 homes 
D) None of these alternatives is correct.

Question 17

A survey to collect data on the entire population is

Accepted Answer

A) a census 
B) a sample 
C) a population 
D) an inference 
A) a census 
B) a sample 
C) a population 
D) an inference

Question 18

Which of the following is a scale of measurement?

Accepted Answer

A) ratio 
B) primal 
C) divisional 
D) remedial 
A) ratio 
B) primal 
C) divisional 
D) remedial

Question 19

Michael,Inc. ,a manufacturer of electric guitars,is a small firm with 50 employees.The table below shows the hourly wage distribution of the employees.
   
a.How many employees receive hourly wages of at least $18?
b.What percentage of the employees has hourly wages of at least $18?
c.What percentage of the employees has hourly wages of less than $14?

Accepted Answer

The answer of Michael,Inc. ,a manufacturer of electric guitars,is a...

Question 20

In a data set,the number of elements will always be the same as the number of

Accepted Answer

A) independent variables 
B) observations 
C) data points 
D) dependent variables 
A) independent variables 
B) observations 
C) data points 
D) dependent variables

Census refers to

Quantitative data

Which of the following can be classified as quantitative data?

The entities on which data are collected are

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

In Excel,a worksheet that displays the formulas used to create the results is a

In experimental studies,the variable of interest

In a sample of 400 students in a university,80,or 20%,are Business majors.Based on the above information,the school's paper reported that "20% of all the students at the university are Business majors." This report is an example of

For ease of data entry into a university database,1 denotes that the student is an undergraduate and 2 indicates that the student is a graduate student.In this case data are

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.Yearly Salary is an example of ________ data.

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.

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 manager's statement that 40% of Daisy City's 2,000 homes are in violation of city codes is

A survey to collect data on the entire population is

Which of the following is a scale of measurement?

In a data set,the number of elements will always be the same as the number 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

Statistical Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Tests of Goodness of Fit and Independence

Analysis of Variance and Experimental Design

Simple Linear Regression

Multiple Regression

Regression Analysis: Model Building

Index Numbers

Forecasting

Nonparametric Methods

Statistical Methods for Quality Control

Decision Analysis

Sample Survey

Filters

Exam 1: Data and Statistics

Census refers to

Quantitative data

Which of the following can be classified as quantitative data?

The entities on which data are collected are

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

In Excel,a worksheet that displays the formulas used to create the results is a

In experimental studies,the variable of interest

In a sample of 400 students in a university,80,or 20%,are Business majors.Based on the above information,the school's paper reported that "20% of all the students at the university are Business majors." This report is an example of

For ease of data entry into a university database,1 denotes that the student is an undergraduate and 2 indicates that the student is a graduate student.In this case data are

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.Yearly Salary is an example of ________ data.

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.

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 manager's statement that 40% of Daisy City's 2,000 homes are in violation of city codes is

A survey to collect data on the entire population is

Which of the following is a scale of measurement?

In a data set,the number of elements will always be the same as the number 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

Statistical Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Tests of Goodness of Fit and Independence

Analysis of Variance and Experimental Design

Simple Linear Regression

Multiple Regression

Regression Analysis: Model Building

Index Numbers

Forecasting

Nonparametric Methods

Statistical Methods for Quality Control

Decision Analysis

Sample Survey

Filters