Question 1

A recording error is an error of observation.

Accepted Answer

A) True 
 B)False

Question 2

Temperature (in degrees Fahrenheit) is an example of a(n) ________ variable.

Accepted Answer

A)  nominative 
B)  ordinal 
C)  interval 
D)  ratio 
A)  nominative 
B)  ordinal 
C)  interval 
D)  ratio

Question 3

________ uses traditional or newer graphics to present visual summaries of business information.

Accepted Answer

A)  Nonparametric predictive analytics 
B)  Parametric predictive analytics 
C)  Prescriptive analytics 
D)  Graphical descriptive analytics 
A)  Nonparametric predictive analytics 
B)  Parametric predictive analytics 
C)  Prescriptive analytics 
D)  Graphical descriptive analytics

Question 4

A study is being conducted on the effect of gas price on the number of miles driven in a given month. Residents in two cities, one on the East Coast and one on the West Coast, are randomly selected and asked to complete a questionnaire on the type of car they drive, the number of miles they live from work, the number of children under 18 in their household, their monthly income, and the number of miles they have driven over the past 30 days. Is this an experimental or observational study?

Accepted Answer

Observational study
An observational stu

Question 5

________ is the science of using a sample to make generalizations about the important aspects of a population.

Accepted Answer

A)  Time series analysis 
B)  Descriptive statistics 
C)  Random sample 
D)  Statistical inference 
A)  Time series analysis 
B)  Descriptive statistics 
C)  Random sample 
D)  Statistical inference

Question 6

A data set provides information about some group of individual ________.

Accepted Answer

A)  variables 
B)  elements 
C)  statistics 
D)  measurements 
A)  variables 
B)  elements 
C)  statistics 
D)  measurements

Question 7

When we are choosing a random sample and we do not place chosen units back into the population, we are

Accepted Answer

A)  sampling with replacement. 
B)  sampling without replacement. 
C)  using a systematic sample. 
D)  using a voluntary response sample. 
A)  sampling with replacement. 
B)  sampling without replacement. 
C)  using a systematic sample. 
D)  using a voluntary response sample.

Question 8

A study is being conducted on the effect of gas price on the number of miles driven in a given month. Residents in two cities, one on the East Coast and one on the West Coast, are randomly selected and asked to complete a questionnaire on the type of car they drive, the number of miles they live from work, the number of children under 18 in their household, their monthly income, and the number of miles they have driven over the past 30 days. List the factor(s).

Accepted Answer

Factors in this study are loca

Question 9

In ________ we select elements because they are easy to sample.

Accepted Answer

A)  random sampling 
B)  convenience sampling 
C)  judgment sampling 
D)  probability sampling 
A)  random sampling 
B)  convenience sampling 
C)  judgment sampling 
D)  probability sampling

Question 10

A ________ is a subset of the units in a population.

Accepted Answer

A)  census 
B)  process 
C)  sample 
D)  variable 
A)  census 
B)  process 
C)  sample 
D)  variable

Question 11

________ sampling is where we know the chance that each element will be included in the sample, which allows us to make statistical inferences about the sample population.

Accepted Answer

A)  Convenience 
B)  Voluntary 
C)  Probability 
D)  Judgment 
A)  Convenience 
B)  Voluntary 
C)  Probability 
D)  Judgment

Question 12

A ________ variable takes on values that are numbers on the real number line.

Accepted Answer

A)  qualitative 
B)  quantitative 
C)  categorical 
D)  nominative 
A)  qualitative 
B)  quantitative 
C)  categorical 
D)  nominative

Question 13

Measurements from a population are called

Accepted Answer

A)  elements. 
B)  observations. 
C)  variables. 
D)  processes. 
A)  elements. 
B)  observations. 
C)  variables. 
D)  processes.

Question 14

Errors of non-observation occur when data values are recorded incorrectly.

Accepted Answer

A) True 
 B)False

Question 15

Time series data are data collected at the same time period.

Accepted Answer

A) True 
 B)False

Question 16

Data warehousing is defined as a process of centralized data management and retrieval.

Accepted Answer

A) True 
 B)False

Question 17

The target population is the result of sampling from the original population that is of interest to the researcher.

Accepted Answer

A) True 
 B)False

Question 18

When the data being studied are gathered from a published source, this is referred to as a(n) ________.

Accepted Answer

A)  existing data source 
B)  observational data source 
C)  experimental data source 
D)  cross-sectional data source 
A)  existing data source 
B)  observational data source 
C)  experimental data source 
D)  cross-sectional data source

A recording error is an error of observation.

Temperature (in degrees Fahrenheit) is an example of a(n) ________ variable.

________ uses traditional or newer graphics to present visual summaries of business information.

________ is the science of using a sample to make generalizations about the important aspects of a population.

A data set provides information about some group of individual ________.

When we are choosing a random sample and we do not place chosen units back into the population, we are

In ________ we select elements because they are easy to sample.

A ________ is a subset of the units in a population.

________ sampling is where we know the chance that each element will be included in the sample, which allows us to make statistical inferences about the sample population.

A ________ variable takes on values that are numbers on the real number line.

Measurements from a population are called

Errors of non-observation occur when data values are recorded incorrectly.

Time series data are data collected at the same time period.

Data warehousing is defined as a process of centralized data management and retrieval.

The target population is the result of sampling from the original population that is of interest to the researcher.

When the data being studied are gathered from a published source, this is referred to as a(n) ________.

Descriptive Statistics and Analytics: Tabular and Graphical Methods

Descriptive Statistics and Analytics: Numerical Methods

Probability and Probability Models

Predictive Analytics I: Trees, K-Nearest Neighbors, Naive Bayes,

Discrete Random Variables

Continuous Random Variables

Sampling Distributions

Confidence Intervals

Hypothesis Testing

Statistical Inferences Based on Two Samples

Experimental Design and Analysis of Variance

Chi-Square Tests

Simple Linear Regression Analysis

Multiple Regression and Model Building

Predictive Analytics Ii: Logistic Regression, Discriminate Analysis,

Time Series Forecasting and Index Numbers

Nonparametric Methods

Decision Theory

Filters

Exam 1: An Introduction to Business Statistics and Analytics

A recording error is an error of observation.

Temperature (in degrees Fahrenheit) is an example of a(n) ________ variable.

________ uses traditional or newer graphics to present visual summaries of business information.

________ is the science of using a sample to make generalizations about the important aspects of a population.

A data set provides information about some group of individual ________.

When we are choosing a random sample and we do not place chosen units back into the population, we are

In ________ we select elements because they are easy to sample.

A ________ is a subset of the units in a population.

________ sampling is where we know the chance that each element will be included in the sample, which allows us to make statistical inferences about the sample population.

A ________ variable takes on values that are numbers on the real number line.

Measurements from a population are called

Errors of non-observation occur when data values are recorded incorrectly.

Time series data are data collected at the same time period.

Data warehousing is defined as a process of centralized data management and retrieval.

The target population is the result of sampling from the original population that is of interest to the researcher.

When the data being studied are gathered from a published source, this is referred to as a(n) ________.

Descriptive Statistics and Analytics: Tabular and Graphical Methods

Descriptive Statistics and Analytics: Numerical Methods

Probability and Probability Models

Predictive Analytics I: Trees, K-Nearest Neighbors, Naive Bayes,

Discrete Random Variables

Continuous Random Variables

Sampling Distributions

Confidence Intervals

Hypothesis Testing

Statistical Inferences Based on Two Samples

Experimental Design and Analysis of Variance

Chi-Square Tests

Simple Linear Regression Analysis

Multiple Regression and Model Building

Predictive Analytics Ii: Logistic Regression, Discriminate Analysis,

Time Series Forecasting and Index Numbers

Nonparametric Methods

Decision Theory

Filters