Exam (elaborations)

Test Bank for Introduction to Statistics and Data Analysis, 7th Edition by Roxy Peck

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Course
Introduction to Statistics

Institution
Introduction To Statistics

Test Bank for Introduction to Statistics and Data Analysis, 7e 7th Edition by Roxy Peck, Chris Olsen. Complete Chapters (Chap 1- 16) are included with answers. 1. THE ROLE OF STATISTICS AND THE DATA ANALYSIS PROCESS: Why Study Statistics? The Nature and Role of Variability. Statistics and the Da...

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Uploaded on September 16, 2024
Number of pages 418
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Institution Introduction to Statistics
Course Introduction to Statistics

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,Chapter 01 7e Peck
Complete Chapters Included ✅
Indicate whether the statement is true or false.
INSTRUCTIONS:
The following questions are in a True/False format. The answers to these questions will frequently depend on
remembering facts, understanding of the concepts, and knowing the statistical vocabulary. Before answering
these questions, be sure to read them carefully!
1. Methods for summarizing data make up the branch of statistics called inferential statistics.
a. True
b. False

ANSWER: False

2. A primary use of inferential statistics is to make generalizations from a sample to a population.
a. True
b. False

ANSWER: True
3. The relative frequency for a particular category is the number of times the category appears in the data.
a. True
b. False

ANSWER: False
4. A data set consisting of many observations of a single characteristic is a categorical data set.
a. True
b. False

ANSWER: False
5. The entire collection of individuals or objects about which information is desired is called a sample.
a. True
b. False

ANSWER: False
6. A data set is discrete if the possible values are isolated points on the number line.
a. True
b. False

ANSWER: True

Page 1

,Name: Class: Date:

Chapter 01 7e Peck

INSTRUCTIONS:
The following questions are in a True/False format. The answers to these questions will frequently depend on
remembering facts, understanding of the concepts, and knowing the statistical vocabulary. Before answering
these questions, be sure to read them carefully!
7. Dotplots work best for small and moderate sized numerical data sets.
a. True
b. False

ANSWER: True

8. Bar charts should be used with categorical data.
a. True
b. False

ANSWER: True
9. A data set is discrete if the possible values are isolated points on the number line.
a. True
b. False

ANSWER: True
10. Frequency distributions can only be used with categorical data.
a. True
b. False

ANSWER: False
Indicate the answer choice that best completes the statement or answers the question.
11. The following variables are commonly used to describe human appearance:
I) Eye color (blue, green, brown, grey)
II) Hair color (brown, black, blond, grey)
III) Hair length
IV) Waist circumference
Which of these variables are categorical?
a. I only
b. II only
c. II and III only
d. I and II only

ANSWER: d

Page 2

, Name: Class: Date:

Chapter 01 7e Peck

12. Your laboratory procedure asks you to record the following information about each sample you analyze:
I) Sample weight in grams
II) Name of the customer who submitted the sample
III) Age of the customer who submitted the sample
IV) Sample temperature at the time of submission
Which of these represents numerical data?
a. I only
b. I and II only
c. I and III only
d. I, III, and IV only

ANSWER: d
13. A consumer information survey form solicits the following responses:
I) Age of the respondent
II) Gender of the respondent
III) Level of job satisfaction (satisfied, somewhat satisfied, dissatisfied)
IV) Annual income
Which of the responses represents categorical data?
a. I only
b. II only
c. III only
d. II and III only

ANSWER: d
14. You are gathering data on the sales of packaged hard candies sold in a hotel gift shop. Your variables of interest
include:
I) The type of container in which the candies are packaged (glass jar, cardboard box, or plastic bag)
II) The weight of the container
III) The number of candies in the container
IV) The height above the floor at which the candy-filled container was displayed
Which of the variables of interest are numerical and discrete?
a. I only
b. II only
c. III only
d. II and III only

ANSWER: c

Page 3

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Exam (elaborations)

Test Bank for Introduction to Statistics and Data Analysis, 7th Edition by Roxy Peck

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