,CHAPTER 1
1) Which of the following is not an example of a statistic?
A) The weekly income of the typical high school graduate compared to a typical college
graduate
B) A list of the profits earned last year for 100 companies in the United States
C) The unemployment rate in the United States for last month
D) The average profit earned last year for the 10 top companies on the Dow Jones Index
2) A store asks shoppers for their zip codes to identify market areas. Zip codes are an
example of ratio data.
⊚ true
⊚ false
3) What type of variable is the number of gallons of gasoline pumped by a filling station
during a day?
A) Discrete
B) Qualitative
C) Attribute
D) Continuous
4) The incomes of 50 loan applicants are obtained. Which level of measurement is income?
A) Interval
B) Ratio
C) Ordinal
D) Nominal
5) An example of a qualitative variable is
Version 1 1
, A) miles between oil changes.
B) number of children in a family.
C) weight of a person.
D) color of ink in a pen.
6) SAT scores are an example of ratio data.
⊚ true
⊚ false
7) Statistics is used to report the summary results of market surveys.
⊚ true
⊚ false
8) When TV advertisements report that "2 out of 3 dentists surveyed indicated they would
recommend Brand X toothpaste to their patients," an informed consumer may question the
conclusion because
A) the conclusion is not illustrated with a graph.
B) the sample of dentists is clearly explained.
C) the advertisement does not include the total number of dentists surveyed.
D) the sample was only 5 dentists.
9) The terms descriptive statistics and inferential statistics can be used interchangeably.
⊚ true
⊚ false
10) The average number of passengers on commercial flights between Chicago and New
York City is an example of a statistic.
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, ⊚ true
⊚ false
11) The main purpose of descriptive statistics is to
A) gather or collect data.
B) make inferences about a population.
C) determine if the data adequately represent the population.
D) summarize data in a useful and informative manner.
12) The ordinal level of measurement is considered the "lowest" level of measurement.
⊚ true
⊚ false
13) If we select 100 persons from 25,000 registered voters and question them about
candidates and issues, the 100 persons are referred to as the population.
⊚ true
⊚ false
14) The monthly average number of cases of people testing positive for a virus infection, by
country, is an example of a statistic.
⊚ true
⊚ false
15) The CIA World Factbook cited these numbers for the United States:
● The birthrate is 13.66 births per 1,000 of the population.
● The average life expectancy for females is 81.17 years.
● Approximately 316.7 million persons reside in the United States.
Each of these numbers is referred to as a statistic.
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1) Which of the following is not an example of a statistic?
A) The weekly income of the typical high school graduate compared to a typical college
graduate
B) A list of the profits earned last year for 100 companies in the United States
C) The unemployment rate in the United States for last month
D) The average profit earned last year for the 10 top companies on the Dow Jones Index
2) A store asks shoppers for their zip codes to identify market areas. Zip codes are an
example of ratio data.
⊚ true
⊚ false
3) What type of variable is the number of gallons of gasoline pumped by a filling station
during a day?
A) Discrete
B) Qualitative
C) Attribute
D) Continuous
4) The incomes of 50 loan applicants are obtained. Which level of measurement is income?
A) Interval
B) Ratio
C) Ordinal
D) Nominal
5) An example of a qualitative variable is
Version 1 1
, A) miles between oil changes.
B) number of children in a family.
C) weight of a person.
D) color of ink in a pen.
6) SAT scores are an example of ratio data.
⊚ true
⊚ false
7) Statistics is used to report the summary results of market surveys.
⊚ true
⊚ false
8) When TV advertisements report that "2 out of 3 dentists surveyed indicated they would
recommend Brand X toothpaste to their patients," an informed consumer may question the
conclusion because
A) the conclusion is not illustrated with a graph.
B) the sample of dentists is clearly explained.
C) the advertisement does not include the total number of dentists surveyed.
D) the sample was only 5 dentists.
9) The terms descriptive statistics and inferential statistics can be used interchangeably.
⊚ true
⊚ false
10) The average number of passengers on commercial flights between Chicago and New
York City is an example of a statistic.
Version 1 2
, ⊚ true
⊚ false
11) The main purpose of descriptive statistics is to
A) gather or collect data.
B) make inferences about a population.
C) determine if the data adequately represent the population.
D) summarize data in a useful and informative manner.
12) The ordinal level of measurement is considered the "lowest" level of measurement.
⊚ true
⊚ false
13) If we select 100 persons from 25,000 registered voters and question them about
candidates and issues, the 100 persons are referred to as the population.
⊚ true
⊚ false
14) The monthly average number of cases of people testing positive for a virus infection, by
country, is an example of a statistic.
⊚ true
⊚ false
15) The CIA World Factbook cited these numbers for the United States:
● The birthrate is 13.66 births per 1,000 of the population.
● The average life expectancy for females is 81.17 years.
● Approximately 316.7 million persons reside in the United States.
Each of these numbers is referred to as a statistic.
Version 1 3
