Question 1

Which of the following is (are) based on cross sectional data?

Accepted Answer

A) Company quarterly profits 
B) Percentage of American adults who work full time 
C) Dow Jones Index 
D) All of the above 
E) None of the above. 
A) Company quarterly profits 
B) Percentage of American adults who work full time 
C) Dow Jones Index 
D) All of the above 
E) None of the above.

Question 2

The data collected in a recent (2012) Nielsen Global Survey analyzed Asian American demographics.Which of the following statements is (are) true?

Accepted Answer

A) Education level is a categorical variable. 
B) Education level is nominal scaled. 
C) Education level is ordinal scaled. 
D) Both A and B 
E) Both A and C 
A) Education level is a categorical variable. 
B) Education level is nominal scaled. 
C) Education level is ordinal scaled. 
D) Both A and B 
E) Both A and C

Question 3

A few of the variables for which data were collected in the Viamedia survey about television viewing include age, gender, income, and type of device used to watch television.Which of the variables is categorical?

Accepted Answer

A) Age 
B) Type of device used to watch television 
C) Income 
D) All 
E) None 
A) Age 
B) Type of device used to watch television 
C) Income 
D) All 
E) None

Question 4

The Human Resources Department of a large corporation maintains records on its employees.Data are maintained of the following variables: Age, Employment Category, Education, and Whether or not the employee has an advanced degree.Which of these variables are categorical?

Accepted Answer

A) Age, Employment Category, and Education 
B) Employment Category and Education 
C) Education and Whether or not the employee has an advanced degree 
D) All of the variables 
E) None of the variables 
A) Age, Employment Category, and Education 
B) Employment Category and Education 
C) Education and Whether or not the employee has an advanced degree 
D) All of the variables 
E) None of the variables

Question 5

A locally owned spa, Alexander's, is interested in adding a tea room that not only offers specialty teas but an organic lunch menu.In order to determine how many of its regular customers would be interested in such an addition, Alexander's sent out a short e-mail questionnaire.The source of these data is _________________________ .

Accepted Answer

A) the Internet 
B) transactional 
C) a designed survey 
D) a designed experiment 
E) secondary 
A) the Internet 
B) transactional 
C) a designed survey 
D) a designed experiment 
E) secondary

Question 6

Which of the following is (are) time series data?

Accepted Answer

A) Weekly receipts at a clothing boutique 
B) Monthly demand for an automotive part 
C) Quarterly sales of automobiles 
D) All of the above 
E) None of the above 
A) Weekly receipts at a clothing boutique 
B) Monthly demand for an automotive part 
C) Quarterly sales of automobiles 
D) All of the above 
E) None of the above

Question 7

What is the "Who" in a Consumer Reports Health study on the effectiveness and safety of drugs used to treat arthritis?

Accepted Answer

A) drugs to treat arthritis currently on the market 
B) convenience of use and possible side effects 
C) summer 2008 
D) the United States 
E) testing on drugs 
A) drugs to treat arthritis currently on the market 
B) convenience of use and possible side effects 
C) summer 2008 
D) the United States 
E) testing on drugs

Question 8

Consumer Reports Health routinely compares drugs in terms of effectiveness and safety.In summer 2008 they reviewed drugs used to treat arthritis.Among the information reported was convenience of use (how many pills required each day) and possible side effects (e.g., dizziness, stomach upset).Convenience of use and possible side effects constitute the ________ of the study.

Accepted Answer

A) Who 
B) What 
C) When 
D) Where 
E) How 
A) Who 
B) What 
C) When 
D) Where 
E) How

Question 9

A popular travel magazine regularly reviews hotels worldwide.In a recent issue, it focused on hotels in Hawaii.Among the variables for which it provided data was the price range for rooms with an ocean view.Which of the following statements is true?

Accepted Answer

A) These data are transactional. 
B) This variable is quantitative and the units are $. 
C) This variable is quantitative and the units are number of rooms. 
D) This variable is qualitative and ordinal. 
E) These data are time series. 
A) These data are transactional. 
B) This variable is quantitative and the units are $. 
C) This variable is quantitative and the units are number of rooms. 
D) This variable is qualitative and ordinal. 
E) These data are time series.

Which of the following is (are) based on cross sectional data?

The data collected in a recent (2012) Nielsen Global Survey analyzed Asian American demographics.Which of the following statements is (are) true?

A few of the variables for which data were collected in the Viamedia survey about television viewing include age, gender, income, and type of device used to watch television.Which of the variables is categorical?

The Human Resources Department of a large corporation maintains records on its employees.Data are maintained of the following variables: Age, Employment Category, Education, and Whether or not the employee has an advanced degree.Which of these variables are categorical?

Which of the following is (are) time series data?

What is the "Who" in a Consumer Reports Health study on the effectiveness and safety of drugs used to treat arthritis?

A popular travel magazine regularly reviews hotels worldwide.In a recent issue, it focused on hotels in Hawaii.Among the variables for which it provided data was the price range for rooms with an ocean view.Which of the following statements is true?

Visualizing and Describing Categorical Data

Describing, Displaying, and Visualizing Quantitative Data

Correlation and Linear Regression

Randomness and Probability

Random Variables and Probability Models

The Normal and Other Continuous Distributions

Data Sources: Observational Studies and Surveys

Data Sources: Experiments

Sampling Distributions and Confidence Intervals for Proportio

Confidence Intervals for Means

Testing Hypotheses

More About Tests and Intervals

Comparing Two Means

Inference for Counts: Chi-Square Tests

Inference for Regression

Understanding Residuals

Multiple Regression

Building Multiple Regression Models

Time Series Analysis

Introduction to Data Mining

Quality Control

Nonparametric Methods

Decision Making and Risk

Analysis of Experiments and Observational Studies

Statistics and Data Analysis

Filters

Exam 1: Data and Decisions

Which of the following is (are) based on cross sectional data?

The data collected in a recent (2012) Nielsen Global Survey analyzed Asian American demographics.Which of the following statements is (are) true?

A few of the variables for which data were collected in the Viamedia survey about television viewing include age, gender, income, and type of device used to watch television.Which of the variables is categorical?

The Human Resources Department of a large corporation maintains records on its employees.Data are maintained of the following variables: Age, Employment Category, Education, and Whether or not the employee has an advanced degree.Which of these variables are categorical?

Which of the following is (are) time series data?

What is the "Who" in a Consumer Reports Health study on the effectiveness and safety of drugs used to treat arthritis?

A popular travel magazine regularly reviews hotels worldwide.In a recent issue, it focused on hotels in Hawaii.Among the variables for which it provided data was the price range for rooms with an ocean view.Which of the following statements is true?

Visualizing and Describing Categorical Data

Describing, Displaying, and Visualizing Quantitative Data

Correlation and Linear Regression

Randomness and Probability

Random Variables and Probability Models

The Normal and Other Continuous Distributions

Data Sources: Observational Studies and Surveys

Data Sources: Experiments

Sampling Distributions and Confidence Intervals for Proportio

Confidence Intervals for Means

Testing Hypotheses

More About Tests and Intervals

Comparing Two Means

Inference for Counts: Chi-Square Tests

Inference for Regression

Understanding Residuals

Multiple Regression

Building Multiple Regression Models

Time Series Analysis

Introduction to Data Mining

Quality Control

Nonparametric Methods

Decision Making and Risk

Analysis of Experiments and Observational Studies

Statistics and Data Analysis

Filters