Deck 1: What Is Statistics

Question 1

The general process of organizing, summarizing and presenting data in an informative way is called

A) Statistics.
B) Descriptive statistics.
C) Inferential statistics.
D) Levels of measurement.
E) None of the choices are correct.

Answer 1

B

Question 2

(i) The general process of gathering, organizing, presenting, analyzing, and interpreting data to assist in making more effective decisions is called
(ii) The general process of analyzing, and interpreting data to assist in making more effective decisions is called
(iii) If we test a small number of light bulbs from a large group, the small group is called a

A) (i) statistics, (ii) descriptive statistics, and (iii) a population.
B) (i) descriptive statistics, (ii) inferential statistics, and (iii) a sample.
C) (i) inferential statistics, (ii) descriptive statistics, and (iii) a population.
D) (i) statistics, (ii) inferential statistics, and (iii) a sample.
E) (i) statistics, (ii) inferential statistics, and (iii) a population.

Answer 2

B

Question 3

What type of data is the projected return on an investment?

A) Qualitative
B) Continuous
C) Attribute
D) Discrete
E) None of the choices are correct

Answer 3

B

Question 4

Which of the following is an example of attribute data?

A) Number of children in a family
B) Weight of a person
C) Color of ink in a pen
D) Miles between oil changes
E) None of the choices are correct

Question 5

Which word is NOT part of the definition of descriptive statistics?

A) Organizing
B) Analyzing
C) Presenting
D) Predicting
E) None of the choices are correct

Question 6

What type of data is the number of litres of gasoline pumped by a filling station during a day?

A) Qualitative
B) Continuous
C) Attribute
D) Discrete
E) None of the choices are correct

Question 7

(i) The general process of gathering, organizing, presenting, analyzing, and interpreting data to assist in making more effective decisions is called (ii) The general process of analyzing, and interpreting data to assist in making more effective decisions is called
(iii) The subset of individuals or objects of interest or the measurements obtained from all individuals or objects of interest is called

A) (i) statistics, (ii) descriptive statistics, and (iii) a population.
B) (i) descriptive statistics, (ii) inferential statistics, and (iii) a sample.
C) (i) inferential statistics, (ii) descriptive statistics, and (iii) a population.
D) (i) statistics, (ii) inferential statistics, and (iii) a sample.
E) (i) statistics, (ii) inferential statistics, and (iii) a population.

Question 8

What type of data is the number of robberies reported in your city?

A) Attribute
B) Continuous
C) Discrete
D) Qualitative
E) None of the choices are correct

Question 9

What is a portion or part of a population called?

A) Random sample
B) Sample
C) Tally
D) Frequency distribution
E) None of the choices are correct

Question 10

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 results were incorrectly computed.
B) Dentists were not really surveyed.
C) The conclusion does not include the total number of dentists surveyed.
D) The conclusion is not illustrated with a graph.

Question 11

Colleen Waite, Director of General Canadian Sales, is concerned by a downward sales trend. Specifically, their customer base is stable at 2,200, but they are purchasing less each year. She orders her staff to search for causes of the downward trend by selecting a focus group of 50 customers.

A) The focus group of 50 customers represents a sample.
B) The focus group of 50 customers represents a population.
C) The focus group of 50 customers represents an inferential statistic.
D) The focus group of 50 customers represents a census.

Question 12

A survey reports consumers' preferred brands of dish soap. What type of data is this called?

A) Quantitative
B) Continuous
C) Discrete
D) Qualitative
E) None of the choices are correct

Question 13

The main purpose of descriptive statistics is to:

A) Summarize data in a useful and informative manner.
B) Make inferences about a population.
C) Determine if the data adequately represents the population.
D) Gather or collect data.

Question 14

A marketing class of 50 students evaluated the instructor using the following scale: superior, good, average, poor, and inferior. The descriptive summary showed the following survey results: 42%
Superior, 28% good, 25% average, 5% poor, and 0% inferior.

A) The instructor's performance was great!!!
B) The instructor's performance was inferior.
C) Most students rated the instructor as poor or average.
D) No conclusions can be made.

Question 15

The general process of gathering, organizing, presenting, analyzing, and interpreting data to assist in making more effective decisions is called

A) Statistics.
B) Descriptive statistics.
C) Inferential statistics.
D) Levels of measurement.
E) None of the choices are correct.

Question 16

The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called

A) Statistics.
B) Descriptive statistics.
C) Inferential statistics.
D) Levels of measurement.
E) None of the choices are correct.

Question 17

A marketing class of 50 students evaluated the instructor using the following scale: superior, good, average, poor, and inferior. The descriptive summary showed the following survey results: 2%
Superior, 8% good, 45% average, 45% poor, and 0% inferior.

A) The instructor's performance was great!!!
B) The instructor's performance was inferior.
C) Most students rated the instructor as poor or average.
D) No conclusions can be made.

Question 18

(i) The general process of gathering, organizing, presenting, analyzing, and interpreting data to assist in making more effective decisions is called
(ii) The general process of analyzing, and interpreting data to assist in making more effective decisions is called
(iii) The entire set of individuals or objects of interest or the measurements obtained from all individuals or objects of interest is called

A) (i) statistics, (ii) descriptive statistics, and (iii) a population.
B) (i) descriptive statistics, (ii) inferential statistics, and (iii) a sample.
C) (i) inferential statistics, (ii) descriptive statistics, and (iii) a population.
D) (i) statistics, (ii) descriptive statistics, and (iii) a sample.
E) (i) statistics, (ii) inferential statistics, and (iii) a population.

Question 19

Colleen Waite, Director of General Canadian Sales, is concerned by a downward sales trend. Specifically, their customer base is stable at 2,200, but they are purchasing less each year. She orders her staff to search for causes of the downward trend by selecting a focus group of 50 customers.

A) The 2,200 customers represent a sample.
B) The 2,200 customers represent a population.
C) The 2,200 customers represent an inferential statistic.
D) The 2,200 customers represent a census.

Question 20

The general process of analyzing, and interpreting data to assist in making more effective decisions is called

A) Statistics.
B) Descriptive statistics.
C) Inferential statistics.
D) Levels of measurement.
E) None of the choices are correct.

Question 21

A questionnaire contained a question regarding marital status. The respondent checked either single, married, divorced, separated or widowed. What is the scale of measurement for this question?

A) Ratio
B) Interval
C) Ordinal
D) Nominal
E) None of the choices are correct

Question 22

What type of data is the amount of income tax that you have paid?

A) Mutually exhaustive
B) Continuous
C) Discrete
D) Qualitative
E) None of the choices are correct

Question 23

What level of measurement are the Centigrade and Fahrenheit temperature scales?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 24

A survey reports consumers' preferred hair colour. What type of data is this called?

A) Attribute or Qualitative
B) Continuous
C) Discrete
D) Quantitative
E) None of the choices are correct

Question 25

What level of measurement is the price of an admission ticket to a movie theater?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 26

The names of the positions on a hockey team, such as forward and defence, are examples of what level of measurement?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 27

The final rankings of the top 20 NCAA college basketball teams are an example of which level of measurement?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 28

A bank asks customers to evaluate the drive-thru service as to good, average, or poor. Which level of measurement is this classification?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 29

Your height and weight are examples of which level of measurement?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 30

The incomes of a group of 50 loan applicants are obtained. Which level of measurement is income?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 31

The members of each basketball team wear numbers on the back of their jerseys. What scale of measurement are these numbers considered?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 32

Respondents were asked, "Do you now earn more than or less than you did five years ago?" What is this level of measurement?

A) Interval
B) Ratio
C) Nominal
D) Ordinal
E) None of the choices are correct

Question 33

The Equal Employment Opportunity Act requires employers to classify their employees by gender and national origin. Which level of measurement is this?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 34

A market researcher is interested in determining the average income for families in York Region, Ontario. To accomplish this, he takes a random sample of 200 families from the region and uses the data gathered to estimate the average income for families of the entire region. This process is an example of _______.

A) Descriptive statistics
B) Inferential statistics
C) Mutually exclusive statistics
D) Qualitative
E) parametric methods

Question 35

Which one of the following statistics is NOT an example of discrete data?

A) Households watching Canadian Idol.
B) Employees reporting in sick.
C) Distance traveled between Toronto and Ottawa.
D) Members of the York Region Lions Club.
E) Family members.

Question 36

What level of measurement is the number of auto accidents reported in a given month?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 37

If Gallup, Harris and other pollsters asked people to indicate their political party affiliation-Liberal, Conservative or NDP, the data gathered would be an example of which scale of measurement?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 38

If unemployment is 5.5% of the population, what is this level of measurement?

A) Nominal
B) Ordinal
C) Interval or ratio
D) Descriptive
E) None of the choices are correct

Question 39

Your height and weight are examples of which type of random variable?

A) Discrete
B) Continuous
C) Mutually exclusive
D) Qualitative
E) None of the choices are correct

Question 40

Which of the following is an example of continuous data?

A) Family income
B) Number of students in a statistics class
C) Postal codes of shoppers
D) Rankings of baseball teams in a league
E) None of the choices are correct

Question 41

The collecting, organizing, presenting, analyzing, and interpreting of data is called_________

Question 42

(i) If we select 100 persons out of 25,000 registered voters and question them about candidates and issues, the 100 persons are referred to as the population.
(ii) The order that runners finish in a race would be an example of continuous data. (iii) Another name for inductive statistics is descriptive statistics.

A) (i), (ii) and (iii) are all correct statements.
B) (i) and, (ii) are correct statements but not (iii).
C) (i) and, (iii) are correct statements but not (ii).
D) (ii) and, (iii) are correct statements but not (i).
E) All statements are false.

Question 43

A group of women tried five brands of hair spray and ranked them according to preference. What level of measurement is this?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 44

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high), annual income, and age. Which two of the variables are considered to be quantitative rather than qualitative?

A) gender and marital status
B) age and credit rating
C) gender and annual income
D) annual income and age
E) None of the choices are correct

Question 45

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high), annual income, and age. Which two variables are considered to be continuous rather than discrete?

A) gender and marital status
B) age and credit rating
C) gender and annual income
D) annual income and age
E) None of the choices are correct

Question 46

The branch of statistics in which data is collected, analyzed and presented in a concise format is called________statistics.

Question 47

The branch of statistics which does not involve generalizations is called_________ .

Question 48

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high), annual income, and age. Which three variables are considered to be qualitative rather than quantitative?

A) gender, credit rating and marital status
B) annual income, age and credit rating
C) credit rating, gender and marital status
D) annual income and age
E) None of the choices are correct

Question 49

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high), annual income, and age. Label the variable marital status as qualitative or quantitative, discrete or continuous, and nominal, ordinal, interval, or ratio.

A) qualitative, discrete, nominal
B) qualitative, continuous, Ordinal
C) quantitative, discrete, nominal
D) quantitative, continuous, ratio
E) None of the choices are correct

Question 50

If we test a small number of light bulbs from a large group, the small group is called a________.

Question 51

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high), annual income, and age. Label the variable annual income as qualitative or quantitative, discrete or continuous, and nominal, ordinal, interval, or ratio.

A) qualitative, discrete, nominal
B) qualitative, continuous, Ordinal
C) quantitative, discrete, nominal
D) quantitative, continuous, ratio
E) None of the choices are correct

Question 52

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high), annual income, and age. Label the variable credit rating as qualitative or quantitative, discrete or continuous, and nominal, ordinal, interval, or ratio.

A) qualitative, continuous, nominal
B) qualitative, discrete, ordinal
C) quantitative, discrete, nominal
D) quantitative, continuous, ratio
E) None of the choices are correct

Question 53

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high), annual income, and age. Label the variable age as qualitative or quantitative, discrete or continuous, and nominal, ordinal, interval, or ratio.

A) qualitative, discrete, nominal
B) qualitative, continuous, Ordinal
C) quantitative, discrete, nominal
D) quantitative, continuous, ratio
E) None of the choices are correct

Question 54

When we make an estimate or prediction, we use _________techniques.

Question 55

A student was studying the political party preferences of a university's student population. The survey instrument asked students to identify themselves as a Conservative or NDP. This question is flawed because:

A) Students generally don't know their political preferences.
B) The categories are generally mutually exclusive.
C) The categories are not exhaustive.
D) Political preference is a continuous variable.

Question 56

Shoe sizes, such as 7B, 10D and 12EEE, are examples of what level of measurement?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 57

The Nielsen Ratings break down the number of people watching a particular television show by age. Age is what level of measurement?

A) Nominal
B) Ordinal
C) Interval
D) Ratio
E) None of the choices are correct

Question 58

What level of measurement is a bar code?

A) Ratio
B) Ordinal
C) Interval
D) Nominal
E) None of the choices are correct

Question 59

The branch of statistics from which we draw conclusions from sample data is called_________ statistics.

Question 60

A company was studying the demographics of their customers. As part of the study they collected the following variables: gender, marital status, credit rating (low, medium, high), annual income, and age. Label the variable gender as qualitative or quantitative, discrete or continuous, and nominal, ordinal, interval, or ratio.

A) qualitative, discrete, nominal
B) qualitative, continuous, Ordinal
C) quantitative, discrete, nominal
D) quantitative, continuous, ratio
E) None of the choices are correct

Question 61

The lowest level of measurement that has some sort of ranking is________ .

Question 62

A variable that can have any value within a specific range is called ___________.

Question 63

Among the many classes held at your college or university, your statistics class has been selected for a study. This one class is referred to as a_______ .

Question 64

The prime rate of interest is an example of a(n)_______ level of measurement.

Question 65

Nominal data requires that the categories be_____________ and__________.

Question 66

The "highest" level of measurement is__________ .

Question 67

The collection of all possible objects of interest is referred to as the________ .

Question 68

The principal difference between the interval and ratio scale of measurement is that the ratio scale has a _____________________.

Question 69

The major advantage of ordinal data over nominal data is that it allows for_______________________.

Question 70

If an individual, object or measurement appears in at least one category, this listing of categories is said to be ___________.

Question 71

Another name for inferential statistics is______ statistics.

Question 72

The total group being studied is called the_________ .

Question 73

Data that can be categorized into only one category is said to be___________.

Question 74

The "lowest" level of measurement is_________ .

Question 75

Ranked data is an example of a(n)__________ level of measurement.

Question 76

Categorizing students as freshmen, sophomores, juniors and seniors is an example of the________ level of measurement.

Question 77

Qualitative variables are also referred to as a(n)_______ .

Question 78

The number of workers reporting sick in any particular week is considered to be_______ data.