Question 1

Which is not an essential characteristic of a good business data analyst?

Accepted Answer

A) Effective writer 
B) Stays current on techniques 
C) Has a Ph.D.or master's degree in statistics 
D) Can deal with imperfect information 
A) Effective writer 
B) Stays current on techniques 
C) Has a Ph.D.or master's degree in statistics 
D) Can deal with imperfect information

Question 2

Excel has limited use in business because advanced statistical software is widely available.

Accepted Answer

A) True 
 B)False

Question 3

When a statistician omits data contrary to her findings in a study,she is justified as long as the sample supports her objective.

Accepted Answer

A) True 
 B)False

Question 4

Which is not a practical constraint facing the business researcher or data analyst?

Accepted Answer

A) Time and money are always limited. 
B) The world is no laboratory,so some experiments are impractical. 
C) Research on human subjects is fraught with danger and ethical issues. 
D) Survey respondents usually will tell the truth if well compensated. 
A) Time and money are always limited. 
B) The world is no laboratory,so some experiments are impractical. 
C) Research on human subjects is fraught with danger and ethical issues. 
D) Survey respondents usually will tell the truth if well compensated.

Question 5

An ethical data analyst would be least likely to

Accepted Answer

A) check data for accuracy. 
B) cite his/her data sources and their limitations. 
C) acknowledge sources of financial support. 
D) rely on consultants for all calculations. 
A) check data for accuracy. 
B) cite his/her data sources and their limitations. 
C) acknowledge sources of financial support. 
D) rely on consultants for all calculations.

Question 6

The post hoc fallacy says that when B follows A then B is caused by A.

Accepted Answer

A) True 
 B)False

Question 7

Which is not a goal of the ethical data analyst?

Accepted Answer

A) To be an honest broker of data. 
B) To learn to downplay inconvenient data. 
C) To understand the firm's code of ethics (or help create one). 
D) To look for hidden agendas in data collection. 
A) To be an honest broker of data. 
B) To learn to downplay inconvenient data. 
C) To understand the firm's code of ethics (or help create one). 
D) To look for hidden agendas in data collection.

Question 8

Because 25 percent of the students in my morning statistics class watch eight or more hours of television a week,I conclude that 25 percent of all students at the university watch eight or more hours of television a week.The most important logical weakness of this conclusion would be

Accepted Answer

A) relying on a sample instead of surveying every student. 
B) using a sample that may not be representative of all students. 
C) failing to correct for unconscious interviewer bias. 
D) assuming cause and effect where none exists. 
A) relying on a sample instead of surveying every student. 
B) using a sample that may not be representative of all students. 
C) failing to correct for unconscious interviewer bias. 
D) assuming cause and effect where none exists.

Question 9

"Bob must be rich.He's a lawyer,and lawyers make lots of money." This statement best illustrates which fallacy?

Accepted Answer

A) Using poor survey methods 
B) Confusing significance with importance 
C) Unconscious bias 
D) Generalizing from an average to an individual 
A) Using poor survey methods 
B) Confusing significance with importance 
C) Unconscious bias 
D) Generalizing from an average to an individual

Question 10

Which is not a likely task of descriptive statistics?

Accepted Answer

A) Summarizing a sample 
B) Describing data numerically 
C) Estimating unknown parameters 
D) Making visual displays of data 
A) Summarizing a sample 
B) Describing data numerically 
C) Estimating unknown parameters 
D) Making visual displays of data

Question 11

Which is not an ethical obligation of a statistician?

Accepted Answer

A) To know and follow accepted procedures 
B) To ensure data integrity and accurate calculations 
C) To support client wishes in drawing conclusions from the data 
D) To acknowledge sources of financial support 
A) To know and follow accepted procedures 
B) To ensure data integrity and accurate calculations 
C) To support client wishes in drawing conclusions from the data 
D) To acknowledge sources of financial support

Question 12

Which of the following is not a characteristic of an ideal statistician?

Accepted Answer

A) Technically current (e.g. ,software) 
B) Communicates well (both written and oral) 
C) Advocates client's objectives 
D) Can deal with imperfect information 
A) Technically current (e.g. ,software) 
B) Communicates well (both written and oral) 
C) Advocates client's objectives 
D) Can deal with imperfect information

Question 13

Inconsistent treatment of data by a researcher is a symptom of poor survey or research design.

Accepted Answer

A) True 
 B)False

Question 14

Valid statistical inferences cannot be made when sample sizes are small.

Accepted Answer

A) True 
 B)False

Question 15

An ethical statistical consultant would not always

Accepted Answer

A) follow accepted statistical procedures. 
B) support management's desired conclusions. 
C) acknowledge sources of financial support. 
D) report limitations of the data. 
A) follow accepted statistical procedures. 
B) support management's desired conclusions. 
C) acknowledge sources of financial support. 
D) report limitations of the data.

Question 16

Statistical challenges include imperfect data,practical constraints,and ethical dilemmas.

Accepted Answer

A) True 
 B)False

Question 17

In business communication,a table of numbers is preferred to a graph because it is more able to convey meaning.

Accepted Answer

A) True 
 B)False

Question 18

Which is not a likely area of application of statistics in business?

Accepted Answer

A) Auditing supplier invoices for correct payment 
B) Questioning the executives' strategic decisions 
C) Looking for patterns in a large marketing database 
D) Making forecasts of several key product lines 
A) Auditing supplier invoices for correct payment 
B) Questioning the executives' strategic decisions 
C) Looking for patterns in a large marketing database 
D) Making forecasts of several key product lines

Question 19

Which of the following statements is correct?

Accepted Answer

A) A parameter is a measure that is calculated from a sample. 
B) Statistics is the science of collecting,organizing,analyzing,interpreting,and presenting data. 
C) For day-to-day business data analysis,most firms rely on a large staff of expert statisticians. 
D) A statistical test result that is significant also has practical importance. 
A) A parameter is a measure that is calculated from a sample. 
B) Statistics is the science of collecting,organizing,analyzing,interpreting,and presenting data. 
C) For day-to-day business data analysis,most firms rely on a large staff of expert statisticians. 
D) A statistical test result that is significant also has practical importance.

Question 20

Statistics is an essential part of critical thinking because it allows us to transform the empirical evidence from a sample so it will agree with our preferred conclusions.

Accepted Answer

A) True 
 B)False

Which is not an essential characteristic of a good business data analyst?

Excel has limited use in business because advanced statistical software is widely available.

When a statistician omits data contrary to her findings in a study,she is justified as long as the sample supports her objective.

Which is not a practical constraint facing the business researcher or data analyst?

An ethical data analyst would be least likely to

The post hoc fallacy says that when B follows A then B is caused by A.

Which is not a goal of the ethical data analyst?

Because 25 percent of the students in my morning statistics class watch eight or more hours of television a week,I conclude that 25 percent of all students at the university watch eight or more hours of television a week.The most important logical weakness of this conclusion would be

"Bob must be rich.He's a lawyer,and lawyers make lots of money." This statement best illustrates which fallacy?

Which is not a likely task of descriptive statistics?

Which is not an ethical obligation of a statistician?

Which of the following is not a characteristic of an ideal statistician?

Inconsistent treatment of data by a researcher is a symptom of poor survey or research design.

Valid statistical inferences cannot be made when sample sizes are small.

An ethical statistical consultant would not always

Statistical challenges include imperfect data,practical constraints,and ethical dilemmas.

In business communication,a table of numbers is preferred to a graph because it is more able to convey meaning.

Which is not a likely area of application of statistics in business?

Which of the following statements is correct?

Statistics is an essential part of critical thinking because it allows us to transform the empirical evidence from a sample so it will agree with our preferred conclusions.

Data Collection

Describing Data Visually

Descriptive Statistics

Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions and Estimation

One-Sample Hypothesis Tests

Two-Sample Hypothesis Tests

Analysis of Variance

Simple Regression

Multiple Regression

Chi-Square Tests

Filters

Exam 1: Overview of Statistics

Which is not an essential characteristic of a good business data analyst?

Excel has limited use in business because advanced statistical software is widely available.

When a statistician omits data contrary to her findings in a study,she is justified as long as the sample supports her objective.

Which is not a practical constraint facing the business researcher or data analyst?

An ethical data analyst would be least likely to

The post hoc fallacy says that when B follows A then B is caused by A.

Which is not a goal of the ethical data analyst?

Because 25 percent of the students in my morning statistics class watch eight or more hours of television a week,I conclude that 25 percent of all students at the university watch eight or more hours of television a week.The most important logical weakness of this conclusion would be

"Bob must be rich.He's a lawyer,and lawyers make lots of money." This statement best illustrates which fallacy?

Which is not a likely task of descriptive statistics?

Which is not an ethical obligation of a statistician?

Which of the following is not a characteristic of an ideal statistician?

Inconsistent treatment of data by a researcher is a symptom of poor survey or research design.

Valid statistical inferences cannot be made when sample sizes are small.

An ethical statistical consultant would not always

Statistical challenges include imperfect data,practical constraints,and ethical dilemmas.

In business communication,a table of numbers is preferred to a graph because it is more able to convey meaning.

Which is not a likely area of application of statistics in business?

Which of the following statements is correct?

Statistics is an essential part of critical thinking because it allows us to transform the empirical evidence from a sample so it will agree with our preferred conclusions.

Data Collection

Describing Data Visually

Descriptive Statistics

Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions and Estimation

One-Sample Hypothesis Tests

Two-Sample Hypothesis Tests

Analysis of Variance

Simple Regression

Multiple Regression

Chi-Square Tests

Filters