Test Bank for Business Analytics 3rd Edition Camm

, DOWNLOAD THE Test Bank for Business Analytics 3rd Edition Camm
CH 02 - Descriptive Statistics
Multiple Choice

1. A quantity of interest that can take on different values is known as a(n)
a. variable. b. parameter.
c. sample. d. observation.
ANSWER: a
RATIONALE: A characteristic or a quantity of interest that can take on different values is known as a
variable.
POINTS: 1
DIFFICULTY: Easy
REFERENCES: OVERVIEW OF USING DATA: DEFINITIONS AND GOALS
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
NATIONAL STANDARDS: United States - BUSPROG: Analytic
United States - DISC: - Descriptive Statistics
KEYWORDS: Bloom’s: Remember
DATE CREATED: 1/23/2018 10:15 AM
DATE MODIFIED: 3/19/2018 9:53 AM

2. A set of values corresponding to a set of variables is defined as a(n)
a. quantity. b. event.
c. factor. d. observation.
ANSWER: d
RATIONALE: An observation is a set of values corresponding to a set of variables.
POINTS: 1
DIFFICULTY: Easy
REFERENCES: OVERVIEW OF USING DATA: DEFINITIONS AND GOALS
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
NATIONAL STANDARDS: United States - BUSPROG: Analytic
United States - DISC: - Descriptive Statistics
KEYWORDS: Bloom’s: Remember
DATE CREATED: 1/23/2018 10:15 AM
DATE MODIFIED: 3/19/2018 9:53 AM

3. The difference in a variable measured over observations (time, customers, items, etc.) is known as
a. observed differences. b. variation.
c. variable change. d. descriptive analytics.
ANSWER: b
RATIONALE: Variation is the difference in a variable measured over observations (time, customers, items,
etc.).
POINTS: 1
DIFFICULTY: Moderate
REFERENCES: OVERVIEW OF USING DATA: DEFINITIONS AND GOALS
QUESTION TYPE: Multiple Choice
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, DOWNLOAD THE Test Bank for Business Analytics 3rd Edition Camm
CH 02 - Descriptive Statistics

HAS VARIABLES: False
NATIONAL STANDARDS: United States - BUSPROG: Analytic
United States - DISC: - Descriptive Statistics
KEYWORDS: Bloom’s: Remember
DATE CREATED: 1/23/2018 10:15 AM
DATE MODIFIED: 3/19/2018 9:53 AM

4. _______________ acts as a representative of the population.
a. The variable b. The variance
c. A sample d. A random variable
ANSWER: c
RATIONALE: A subset of the population is known as a sample, and acts as a representative of the
population.
POINTS: 1
DIFFICULTY: Easy
REFERENCES: TYPES OF DATA
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
NATIONAL STANDARDS: United States - BUSPROG: Analytic
United States - DISC: - Descriptive Statistics
KEYWORDS: Bloom’s: Remember
DATE CREATED: 1/23/2018 10:15 AM
DATE MODIFIED: 3/19/2018 9:53 AM

5. The act of collecting data that are representative of the population data is called
a. random sampling. b. sample data.
c. population sampling. d. sources of data.
ANSWER: a
RATIONALE: A representative sample can be gathered by random sampling of the population data.
POINTS: 1
DIFFICULTY: Easy
REFERENCES: TYPES OF DATA
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
NATIONAL STANDARDS: United States - BUSPROG: Analytic
United States - DISC: - Descriptive Statistics
KEYWORDS: Bloom’s: Remember
DATE CREATED: 1/23/2018 10:15 AM
DATE MODIFIED: 3/19/2018 9:53 AM

6. The letter grades (A, B, C, D, F) of business analysis students are recorded by a professor. This variable’s classification
a. is quantitative data. b. cannot be determined.
c. is categorical data. d. is time series data.
ANSWER: c
RATIONALE: If arithmetic operations cannot be performed on the data, they are considered categorical data.
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, DOWNLOAD THE Test Bank for Business Analytics 3rd Edition Camm
CH 02 - Descriptive Statistics

POINTS: 1
DIFFICULTY: Easy
REFERENCES: TYPES OF DATA
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
NATIONAL STANDARDS: United States - BUSPROG: Analytic
United States - DISC: - Descriptive Statistics
KEYWORDS: Bloom’s: Apply
DATE CREATED: 1/23/2018 10:15 AM
DATE MODIFIED: 3/19/2018 9:53 AM

7. The amount of time taken by each of 10 students in a class to complete an exam is an example of what type of data?

a. Cannot be determined b. Categorical data
c. Time series data d. Quantitative data
ANSWER: d
RATIONALE: Data are considered quantitative data if numeric and arithmetic operations, such as addition,
subtraction, multiplication, and division, can be performed on them.
POINTS: 1
DIFFICULTY: Easy
REFERENCES: TYPES OF DATA
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
NATIONAL STANDARDS: United States - BUSPROG: Analytic
United States - DISC: - Descriptive Statistics
KEYWORDS: Bloom’s: Remember
DATE CREATED: 1/23/2018 10:15 AM
DATE MODIFIED: 3/19/2018 9:53 AM

8. __________ are collected from several entities at the same point in time.
a. Time series data b. Categorical and quantitative data
c. Cross-sectional data d. Random data
ANSWER: c
RATIONALE: Cross-sectional data are collected from several entities at the same, or approximately the
same, point in time.
POINTS: 1
DIFFICULTY: Moderate
REFERENCES: TYPES OF DATA
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
NATIONAL STANDARDS: United States - BUSPROG: Analytic
United States - DISC: - Descriptive Statistics
KEYWORDS: Bloom’s: Remember
DATE CREATED: 1/23/2018 10:15 AM
DATE MODIFIED: 3/19/2018 9:53 AM
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