Question 1

The following frequency distribution was constructed for the age of accounts receivable:   The frequency distribution reveals that the accounts receivable ages are ___.

Accepted Answer

A)  skewed to the left 
B)  skewed to the right 
C)  not skewed 
D)  normally distributed 
E)  symmetrical 
A)  skewed to the left 
B)  skewed to the right 
C)  not skewed 
D)  normally distributed 
E)  symmetrical

Question 2

Skewness indicates that a data distribution is symmetrical or asymmetrical.

Accepted Answer

A) True 
 B)False

Question 3

Consider the following data: 0, 2, 4, 6, 11, 12, 13. The 35th percentile is

Accepted Answer

A)  5. 
B)  4. 
C)  2. 
D)  6. 
E)  11. 
A)  5. 
B)  4. 
C)  2. 
D)  6. 
E)  11.

Question 4

An instructor is evaluating the performance of students on a test. He records the number of points that each student missed and created a frequency distribution. This is provided below:   
What is the variance for this population?

Accepted Answer

A)  11.43 
B)  135.17 
C)  130.67 
D)  180.67 
E)  198.07 
A)  11.43 
B)  135.17 
C)  130.67 
D)  180.67 
E)  198.07

Question 5

Kurtosis is a measure of the association between two numerical variables.

Accepted Answer

A) True 
 B)False

Question 6

___ are quantiles that divide a group of data into 100 parts.

Accepted Answer

A)  Quartiles 
B)  Quantiles 
C)  Percentiles 
D)  Qucentiles 
A)  Quartiles 
B)  Quantiles 
C)  Percentiles 
D)  Qucentiles

Question 7

A measure of how peaked the data is, is called kurtosis.

Accepted Answer

A) True 
 B)False

Question 8

Excel can produce individual or multiple descriptive statistics.

Accepted Answer

A) True 
 B)False

Question 9

If the mean of a distribution is greater than the median, then the distribution is positively skewed.

Accepted Answer

A) True 
 B)False

Question 10

Shaun Connor, Human Resources Manager for Oil Terminals (OT), is reviewing the operator training hours at OT nationally. His staff compiled the following table of national statistics on operators training hours.   What can Shaun conclude from these statistics?

Accepted Answer

A)  The East Coast distribution is skewed to the left. 
B)  The East Coast distribution is skewed to the right. 
C)  The West Coast distribution is skewed to the left. 
D)  The West Coast distribution is skewed to the right. 
E)  Both distributions are symmetrical. 
A)  The East Coast distribution is skewed to the left. 
B)  The East Coast distribution is skewed to the right. 
C)  The West Coast distribution is skewed to the left. 
D)  The West Coast distribution is skewed to the right. 
E)  Both distributions are symmetrical.

Question 11

The range and interquartile range don't take into account all of the values in a data set when describing variation.

Accepted Answer

A) True 
 B)False

Question 12

The middle value in an ordered array of numbers is called the mode.

Accepted Answer

A) True 
 B)False

Question 13

The following frequency distribution was constructed for the age of accounts receivable:   The frequency distribution reveals that the accounts receivable ages are ___.

Accepted Answer

A)  skewed to the left 
B)  skewed to the right 
C)  not skewed 
D)  normally distributed 
E)  symmetrical 
A)  skewed to the left 
B)  skewed to the right 
C)  not skewed 
D)  normally distributed 
E)  symmetrical

The following frequency distribution was constructed for the age of accounts receivable: The frequency distribution reveals that the accounts receivable ages are ___.

Skewness indicates that a data distribution is symmetrical or asymmetrical.

Consider the following data: 0, 2, 4, 6, 11, 12, 13. The 35^th percentile is

An instructor is evaluating the performance of students on a test. He records the number of points that each student missed and created a frequency distribution. This is provided below: What is the variance for this population?

Kurtosis is a measure of the association between two numerical variables.

___ are quantiles that divide a group of data into 100 parts.

A measure of how peaked the data is, is called kurtosis.

Excel can produce individual or multiple descriptive statistics.

If the mean of a distribution is greater than the median, then the distribution is positively skewed.

Shaun Connor, Human Resources Manager for Oil Terminals (OT), is reviewing the operator training hours at OT nationally. His staff compiled the following table of national statistics on operators training hours. What can Shaun conclude from these statistics?

The range and interquartile range don't take into account all of the values in a data set when describing variation.

The middle value in an ordered array of numbers is called the mode.

The following frequency distribution was constructed for the age of accounts receivable: The frequency distribution reveals that the accounts receivable ages are ___.

Introduction to Statistics

Organizing and Visualizing Data

Gathering Data

Probability

Decision Analysis and Expected Value

Discrete Probability Distributions

Continuous Distributions

Sampling Distributions

Confidence Intervals

Hypothesis Testing for Single Populations

Hypothesis Testing for Two Populations

Analysis of Variance Anova

Linear Correlation and Simple Linear Regression Analysis

Categorical Versus Categorical: Tests

Filters

Exam 3: Descriptive Statistics

The following frequency distribution was constructed for the age of accounts receivable: The frequency distribution reveals that the accounts receivable ages are ___.

Skewness indicates that a data distribution is symmetrical or asymmetrical.

Consider the following data: 0, 2, 4, 6, 11, 12, 13. The 35th percentile is

An instructor is evaluating the performance of students on a test. He records the number of points that each student missed and created a frequency distribution. This is provided below: What is the variance for this population?

Kurtosis is a measure of the association between two numerical variables.

___ are quantiles that divide a group of data into 100 parts.

A measure of how peaked the data is, is called kurtosis.

Excel can produce individual or multiple descriptive statistics.

If the mean of a distribution is greater than the median, then the distribution is positively skewed.

Shaun Connor, Human Resources Manager for Oil Terminals (OT), is reviewing the operator training hours at OT nationally. His staff compiled the following table of national statistics on operators training hours. What can Shaun conclude from these statistics?

The range and interquartile range don't take into account all of the values in a data set when describing variation.

The middle value in an ordered array of numbers is called the mode.

The following frequency distribution was constructed for the age of accounts receivable: The frequency distribution reveals that the accounts receivable ages are ___.

Introduction to Statistics

Organizing and Visualizing Data

Gathering Data

Probability

Decision Analysis and Expected Value

Discrete Probability Distributions

Continuous Distributions

Sampling Distributions

Confidence Intervals

Hypothesis Testing for Single Populations

Hypothesis Testing for Two Populations

Analysis of Variance Anova

Linear Correlation and Simple Linear Regression Analysis

Categorical Versus Categorical: Tests

Filters

Consider the following data: 0, 2, 4, 6, 11, 12, 13. The 35^th percentile is