Question 1

The NASA experiences with the Challenger and Columbia disasters suggest that:

Accepted Answer

A)  statistics is not applicable to space endeavors. 
B)  limited data may still contain important clues. 
C)  good engineers can eliminate risks in space flight. 
D)  space flight is only slightly more risky than commercial air travel. 
A)  statistics is not applicable to space endeavors. 
B)  limited data may still contain important clues. 
C)  good engineers can eliminate risks in space flight. 
D)  space flight is only slightly more risky than commercial air travel.

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

Business intelligence refers to collecting,storing,accessing,and analyzing data on the company's operations in order to make better business decisions.

Accepted Answer

A) True 
 B)False

Question 4

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 5

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 6

"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 7

Surveying electric vehicle owners would provide a representative random sample of Americans' views on global warming policies.

Accepted Answer

A) True 
 B)False

Question 8

An example of descriptive statistics would be reporting the percent of students in your accounting class that attended the review session for the last exam.

Accepted Answer

A) True 
 B)False

Question 9

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 10

Predicting a presidential candidate's percent of the statewide vote from a sample of 800 voters would be an example of inferential statistics.

Accepted Answer

A) True 
 B)False

Question 11

Which is not a reason for an average student to study statistics?

Accepted Answer

A)  Improve technical writing skills 
B)  Gain information management skills 
C)  Enhance technical literacy 
D)  Learn stock market strategies 
A)  Improve technical writing skills 
B)  Gain information management skills 
C)  Enhance technical literacy 
D)  Learn stock market strategies

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

Empirical data are collected through observations and/or experiments.

Accepted Answer

A) True 
 B)False

Question 14

Statistics is the science of collecting,organizing,analyzing,interpreting,and presenting data.

Accepted Answer

A) True 
 B)False

Question 15

Which is not an ethical obligation of a statistician? Explain.

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 16

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 17

Inferential statistics refers to generalizing from a sample to a population,estimating unknown parameters,drawing conclusions,and making decisions.

Accepted Answer

A) True 
 B)False

Question 18

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 19

We would associate the term inferential statistics with which task?

Accepted Answer

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

Question 20

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

Accepted Answer

A) True 
 B)False

The NASA experiences with the Challenger and Columbia disasters suggest that:

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

Business intelligence refers to collecting,storing,accessing,and analyzing data on the company's operations in order to make better business decisions.

Which is not a likely task of descriptive statistics?

An ethical statistical consultant would not always:

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

Surveying electric vehicle owners would provide a representative random sample of Americans' views on global warming policies.

An example of descriptive statistics would be reporting the percent of students in your accounting class that attended the review session for the last exam.

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

Predicting a presidential candidate's percent of the statewide vote from a sample of 800 voters would be an example of inferential statistics.

Which is not a reason for an average student to study statistics?

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

Empirical data are collected through observations and/or experiments.

Statistics is the science of collecting,organizing,analyzing,interpreting,and presenting data.

Which is not an ethical obligation of a statistician? Explain.

An ethical data analyst would be least likely to:

Inferential statistics refers to generalizing from a sample to a population,estimating unknown parameters,drawing conclusions,and making decisions.

Which is not a goal of the ethical data analyst?

We would associate the term inferential statistics with which task?

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

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

Time-Series Analysis

Chi-Square Tests

Nonparametric Tests

Quality Management

Filters

Exam 1: Overview of Statistics

The NASA experiences with the Challenger and Columbia disasters suggest that:

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

Business intelligence refers to collecting,storing,accessing,and analyzing data on the company's operations in order to make better business decisions.

Which is not a likely task of descriptive statistics?

An ethical statistical consultant would not always:

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

Surveying electric vehicle owners would provide a representative random sample of Americans' views on global warming policies.

An example of descriptive statistics would be reporting the percent of students in your accounting class that attended the review session for the last exam.

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

Predicting a presidential candidate's percent of the statewide vote from a sample of 800 voters would be an example of inferential statistics.

Which is not a reason for an average student to study statistics?

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

Empirical data are collected through observations and/or experiments.

Statistics is the science of collecting,organizing,analyzing,interpreting,and presenting data.

Which is not an ethical obligation of a statistician? Explain.

An ethical data analyst would be least likely to:

Inferential statistics refers to generalizing from a sample to a population,estimating unknown parameters,drawing conclusions,and making decisions.

Which is not a goal of the ethical data analyst?

We would associate the term inferential statistics with which task?

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

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

Time-Series Analysis

Chi-Square Tests

Nonparametric Tests

Quality Management

Filters