Question 1

In a questionnaire, respondents are asked to mark their gender as Male, Female, Transgender MtoF, Transgender FtoM, Non-binary, or Intersex. Gender is an example of a(n)  _____ variable.

Accepted Answer

A)   categorical
B)   quantitative
C)   interval
D)   ratioE) All of the above
F) A) and B)

Question 2

Which of the following variables uses the ratio scale of measurement?

Accepted Answer

A)   name of stock exchange
B)   time
C)   SAT scores
D)   social security numberE) C) and D)
F) A) and B)

Question 3

_____ analytics is the set of analytical techniques that yield a course of action.

Accepted Answer

A)   Descriptive
B)   Predictive
C)   Prescriptive
D)   DataE) A) and C)
F) A) and B)

Question 4

The set of measurements collected for an element is called a(n)  _____.

Accepted Answer

A)   census
B)   variable
C)   observation
D)   sampleE) A) and B)
F) A) and C)

Question 5

_____ analytics consists of analytical techniques that use models constructed from past data to predict the future or to assess the impact of one variable on another.

Accepted Answer

A)   Descriptive
B)   Predictive
C)   Prescriptive
D)   DataE) C) and D)
F) B) and C)

Question 6

Which two scales of measurement can be either numeric or nonnumeric?

Accepted Answer

A)   nominal and ratio
B)   ordinal and interval
C)   interval and ordinal
D)   nominal and ordinalE) All of the above
F) A) and D)

Question 7

A sample of five Fortune 500 companies showed the following revenues ($ millions) : 7505.0, 2904.7, 7208.4, 6819.0, and 19500.0. Based on this information, which of the following statements is correct?

Accepted Answer

A)   An estimate of the average revenue for all Fortune 500 companies is 8787.42 ($ millions) .
B)   The average revenue for all Fortune 500 companies is 8787.42 ($ millions) .
C)   Over half of all Fortune 500 companies earn at least 7208.4 ($ millions)  in revenues.
D)   If five other Fortune 500 companies were chosen, the average revenue would be 8787.42 ($ millions) .E) A) and C)
F) All of the above

Question 8

The Microsoft Office package used to perform statistical analysis is _____.

Accepted Answer

A)   SPSS
B)   Word
C)   SAS
D)   ExcelE) B) and C)
F) A) and C)

Question 9

When the data have the properties of ordinal data and the interval between observations is expressed in terms of a fixed unit of measure, the variable has which scale of measurement?

Accepted Answer

A)   nominal
B)   ordinal
C)   interval
D)   ratioE) A) and D)
F) C) and D)

Question 10

Statistical studies in which researchers do not control variables of interest are _____.

Accepted Answer

A)   experimental studies
B)   uncontrolled experimental studies
C)   not of any value
D)   observational studiesE) All of the above
F) B) and C)

Question 11

In an application for a credit card, potential customers are asked for their social security numbers. A social security number is an example of a _____.

Accepted Answer

A)   categorical variable
B)   quantitative variable
C)   categorical or quantitative variable, depending on how the respondents answered the question
D)   ratio variableE) A) and C)
F) C) and D)

Question 12

The collection of all elements of interest in a study is _____.

Accepted Answer

A)   the population
B)   the sampling
C)   statistical inference
D)   descriptive statisticsE) A) and D)
F) C) and D)

Question 13

Flight time from Cincinnati to Atlanta is an example of a _____ variable and _____ measurement.

Accepted Answer

A)   discrete; interval
B)   discrete; ratio
C)   continuous; interval
D)   continuous; ratioE) C) and D)
F) A) and B)

Question 14

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 experimentE) A) and B)
F) All of the above

Question 15

Which of the following is NOT a scale of measurement?

Accepted Answer

A)   nominal
B)   ordinal
C)   interval
D)   categoricalE) A) and D)
F) None of the above

Question 16

Arithmetic operations are inappropriate for _____.

Accepted Answer

A)   categorical data
B)   quantitative data
C)   both categorical and quantitative data
D)   large data setsE) A) and C)
F) None of the above

Question 17

The number of observations in a complete data set having 10 elements and 5 variables is _____.

Accepted Answer

A)   5
B)   10
C)   25
D)   50E) A) and C)
F) None of the above

Question 18

Six hundred residents of a city are polled to obtain information on voting intentions in an upcoming city election. The 600 residents in this study is an example of a(n)  _____.

Accepted Answer

A)   census
B)   sample
C)   observation
D)   populationE) B) and D)
F) A) and C)

Question 19

The summaries of data, which may be tabular, graphical, or numerical, are referred to as _____.

Accepted Answer

A)   inferential statistics
B)   descriptive statistics
C)   statistical inference
D)   report generationE) A) and B)
F) All of the above

Question 20

Categorical data use either the ______ or ______ scale of measurement.

Accepted Answer

A)   nominal; ordinal
B)   nominal; interval
C)   ordinal; interval
D)   interval; ratioE) A) and C)
F) B) and C)

Exam 1: Data and Statistics

The collection of all elements of interest in a study is _____.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

_____ analytics is the set of analytical techniques that yield a course of action.

Correct AnswerverifiedShow Answer

The Microsoft Office package used to perform statistical analysis is _____.

Correct AnswerverifiedShow Answer

Flight time from Cincinnati to Atlanta is an example of a _____ variable and _____ measurement.

Correct AnswerverifiedShow Answer

Statistical studies in which researchers do not control variables of interest are _____.

Correct AnswerverifiedShow Answer

Which of the following is NOT a scale of measurement?

Correct AnswerverifiedShow Answer

In a questionnaire, respondents are asked to mark their gender as Male, Female, Transgender MtoF, Transgender FtoM, Non-binary, or Intersex. Gender is an example of a(n) _____ variable.

Correct AnswerverifiedShow Answer

In an application for a credit card, potential customers are asked for their social security numbers. A social security number is an example of a _____.

Correct AnswerverifiedShow Answer

Six hundred residents of a city are polled to obtain information on voting intentions in an upcoming city election. The 600 residents in this study is an example of a(n) _____.

Correct AnswerverifiedShow Answer

Categorical data use either the ______ or ______ scale of measurement.

Correct AnswerverifiedShow Answer

Which of the following variables uses the ratio scale of measurement?

Correct AnswerverifiedShow Answer

Which two scales of measurement can be either numeric or nonnumeric?

Correct AnswerverifiedShow Answer

A sample of five Fortune 500 companies showed the following revenues ($ millions) : 7505.0, 2904.7, 7208.4, 6819.0, and 19500.0. Based on this information, which of the following statements is correct?

Correct AnswerverifiedShow Answer

The summaries of data, which may be tabular, graphical, or numerical, are referred to as _____.

Correct AnswerverifiedShow Answer

When the data have the properties of ordinal data and the interval between observations is expressed in terms of a fixed unit of measure, the variable has which scale of measurement?

Correct AnswerverifiedShow Answer

_____ analytics consists of analytical techniques that use models constructed from past data to predict the future or to assess the impact of one variable on another.

Correct AnswerverifiedShow Answer

The number of observations in a complete data set having 10 elements and 5 variables is _____.

Correct AnswerverifiedShow Answer

Arithmetic operations are inappropriate for _____.

Correct AnswerverifiedShow Answer

The set of measurements collected for an element is called a(n) _____.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Flight time from Cincinnati to Atlanta is an example of a _ variable and _ measurement.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Categorical data use either the or scale of measurement.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified