Question 1

In an observational study,the variable of interest is called a response variable.

Accepted Answer

A) True 
 B)False

Question 2

The weight of a chemical compound used in an experiment that is obtained using a well-adjusted scale represents a(n)_____________ level of measurement.

Accepted Answer

A) Nominative 
B) Ordinal 
C) Interval 
D) Ratio 
A) Nominative 
B) Ordinal 
C) Interval 
D) Ratio

Question 3

Statistical inference is the science of using a sample of measurements to make generalizations about the important aspects of a population of measurements.

Accepted Answer

A) True 
 B)False

Question 4

Any characteristic of a population unit is a(n):

Accepted Answer

A) Measurement 
B) Sample 
C) Observation 
D) Variable 
A) Measurement 
B) Sample 
C) Observation 
D) Variable

Question 5

Which of the following is NOT an example of unethical statistical practices?

Accepted Answer

A) Inappropriate interpretation of statistical results 
B) Using graphs to make statistical inferences 
C) Improper sampling 
D) Descriptive measures that mislead the user 
E) None of these 
A) Inappropriate interpretation of statistical results 
B) Using graphs to make statistical inferences 
C) Improper sampling 
D) Descriptive measures that mislead the user 
E) None of these

Question 6

Statistical ____________ refers to using a sample of measurements and making generalizations about the important aspects of a population.

Accepted Answer

A) Sampling 
B) Process 
C) Analysis 
D) Inference 
A) Sampling 
B) Process 
C) Analysis 
D) Inference

Question 7

In a data set of information on college business students,an example of an element is their cumulative GPA.

Accepted Answer

A) True 
 B)False

Question 8

A(n)_____________ variable is a qualitative variable such that there is no meaningful ordering or ranking of the categories.

Accepted Answer

A) Ratio 
B) Ordinal 
C) Nominative 
D) Interval 
A) Ratio 
B) Ordinal 
C) Nominative 
D) Interval

Question 9

The number of miles a truck is driven before it is overhauled 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 10

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 11

The number of sick days per month taken by employees for the last 10 years at Apex Co.is an example of time series data.

Accepted Answer

A) True 
 B)False

Question 12

It is possible to use a random sample from one population to make statistical inferences about another related population.

Accepted Answer

A) True 
 B)False

Question 13

Looking at the runs plot of gasoline prices over the past 30 months,describe what it tells us about the price of gas during these 30 months.

Accepted Answer

The price of gas peaked in the

Question 14

Data collected for a particular study are referred to as a data ____________.

Accepted Answer

A) Variable 
B) Measurement 
C) Set 
D) Element 
A) Variable 
B) Measurement 
C) Set 
D) Element

Question 15

If we examine some of the population measurements,we are conducting a census of the population.

Accepted Answer

A) True 
 B)False

Question 16

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

The answer of A study is being conducted on the...

Question 17

Which of the following is a quantitative variable?

Accepted Answer

A) The manufacturer of a cell phone 
B) A person's gender 
C) Mileage of a car 
D) Whether a person is a college graduate 
E) Whether a person has a charge account 
A) The manufacturer of a cell phone 
B) A person's gender 
C) Mileage of a car 
D) Whether a person is a college graduate 
E) Whether a person has a charge account

Question 18

One method of determining whether a sample being studied can be used to make statistical inferences about the population is to:

Accepted Answer

A) Run a descriptive statistical analysis 
B) Calculate a proportion 
C) Create a cross-sectional data analysis 
D) Produce a runs plot 
A) Run a descriptive statistical analysis 
B) Calculate a proportion 
C) Create a cross-sectional data analysis 
D) Produce a runs plot

Question 19

The number of sick days taken by employees in 2008 for the top 10 technology companies is an example of time series data.

Accepted Answer

A) True 
 B)False

Question 20

A ___________ is a display of individual measurements versus time.

Accepted Answer

A) Runs plot 
B) Statistical analysis 
C) Random sample 
D) Measurement 
A) Runs plot 
B) Statistical analysis 
C) Random sample 
D) Measurement

In an observational study,the variable of interest is called a response variable.

The weight of a chemical compound used in an experiment that is obtained using a well-adjusted scale represents a(n)_____________ level of measurement.

Statistical inference is the science of using a sample of measurements to make generalizations about the important aspects of a population of measurements.

Any characteristic of a population unit is a(n):

Which of the following is NOT an example of unethical statistical practices?

Statistical ____________ refers to using a sample of measurements and making generalizations about the important aspects of a population.

In a data set of information on college business students,an example of an element is their cumulative GPA.

A(n)_____________ variable is a qualitative variable such that there is no meaningful ordering or ranking of the categories.

The number of miles a truck is driven before it is overhauled is an example of a(n)_____________ variable.

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

The number of sick days per month taken by employees for the last 10 years at Apex Co.is an example of time series data.

It is possible to use a random sample from one population to make statistical inferences about another related population.

Looking at the runs plot of gasoline prices over the past 30 months,describe what it tells us about the price of gas during these 30 months.

Data collected for a particular study are referred to as a data ____________.

If we examine some of the population measurements,we are conducting a census of the population.

Which of the following is a quantitative variable?

One method of determining whether a sample being studied can be used to make statistical inferences about the population is to:

The number of sick days taken by employees in 2008 for the top 10 technology companies is an example of time series data.

A ___________ is a display of individual measurements versus time.

Descriptive Statistics: Tabular and Graphical Methods

Descriptive Statistics: Numerical Methods

Probability

Discrete Random Variables

Continuous Random Variables

Sampling and 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

Process Improvement Using Control Charts

Filters

Exam 1: An Introduction to Business Statistics

In an observational study,the variable of interest is called a response variable.

The weight of a chemical compound used in an experiment that is obtained using a well-adjusted scale represents a(n)_____________ level of measurement.

Statistical inference is the science of using a sample of measurements to make generalizations about the important aspects of a population of measurements.

Any characteristic of a population unit is a(n):

Which of the following is NOT an example of unethical statistical practices?

Statistical ____________ refers to using a sample of measurements and making generalizations about the important aspects of a population.

In a data set of information on college business students,an example of an element is their cumulative GPA.

A(n)_____________ variable is a qualitative variable such that there is no meaningful ordering or ranking of the categories.

The number of miles a truck is driven before it is overhauled is an example of a(n)_____________ variable.

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

The number of sick days per month taken by employees for the last 10 years at Apex Co.is an example of time series data.

It is possible to use a random sample from one population to make statistical inferences about another related population.

Looking at the runs plot of gasoline prices over the past 30 months,describe what it tells us about the price of gas during these 30 months.

Data collected for a particular study are referred to as a data ____________.

If we examine some of the population measurements,we are conducting a census of the population.

Which of the following is a quantitative variable?

One method of determining whether a sample being studied can be used to make statistical inferences about the population is to:

The number of sick days taken by employees in 2008 for the top 10 technology companies is an example of time series data.

A ___________ is a display of individual measurements versus time.

Descriptive Statistics: Tabular and Graphical Methods

Descriptive Statistics: Numerical Methods

Probability

Discrete Random Variables

Continuous Random Variables

Sampling and 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

Process Improvement Using Control Charts

Filters