Question 1

What measure of central tendency would be most appropriate to summarize data about the color of movie star's eyes?

Accepted Answer

A)  median 
B)  mode 
C)  mean 
D)  none of the above 
A)  median 
B)  mode 
C)  mean 
D)  none of the above

Question 2

Which of the following correctly described the changing religious affiliation of the US since 1990?

Accepted Answer

A)  The percentage of Americans who identify as Protestants has greatly increased 
B)  The percentage of Americans who identify as Protestants has stayed the same 
C)  The percentage of Americans with no religious affiliation has almost doubled 
D)  The percentage of Americans with no religious affiliation has greatly decreased 
A)  The percentage of Americans who identify as Protestants has greatly increased 
B)  The percentage of Americans who identify as Protestants has stayed the same 
C)  The percentage of Americans with no religious affiliation has almost doubled 
D)  The percentage of Americans with no religious affiliation has greatly decreased

Question 3

What is the median of the following set of twelve grades? 55 60 62 67 70 72 74 76 77 85 90 95

Accepted Answer

A)  Since these are interval-ratio scores, the median cannot be found 
B)  72 
C)  73 
D)  74 
A)  Since these are interval-ratio scores, the median cannot be found 
B)  72 
C)  73 
D)  74

Question 4

In a positively skewed distribution, the mean is

Accepted Answer

A)  equal in value to the median 
B)  greater in value than the median 
C)  less in value than the median 
D)  either a or b, depending on the value of the mode 
A)  equal in value to the median 
B)  greater in value than the median 
C)  less in value than the median 
D)  either a or b, depending on the value of the mode

Question 5

The mode should be used to measure central tendency when the level of measurement of the variable is

Accepted Answer

A)  nominal 
B)  ordinal 
C)  interval-ratio 
D)  all of the above 
A)  nominal 
B)  ordinal 
C)  interval-ratio 
D)  all of the above

Question 6

Which measure of central tendency is affected by every score in the distribution?

Accepted Answer

A)  the mean 
B)  the median 
C)  the mode 
D)  all of the above 
A)  the mean 
B)  the median 
C)  the mode 
D)  all of the above

Question 7

The SPSS exercise in the text using state homicide rates for 1995 and 2012 showed

Accepted Answer

A)  the average rate was higher in 2012 
B)  the rate was more positively skewed in 1995 
C)  the modal homicide rate fell dramatically 
D)  the median homicide rate was higher in 2012 
A)  the average rate was higher in 2012 
B)  the rate was more positively skewed in 1995 
C)  the modal homicide rate fell dramatically 
D)  the median homicide rate was higher in 2012

Question 8

A distribution of income for a sample of 45 people that consists of the presidents of the five largest corporations in the United States and forty assembly line workers would be

Accepted Answer

A)  unskewed 
B)  negatively skewed 
C)  positively skewed 
D)  symmetrical 
A)  unskewed 
B)  negatively skewed 
C)  positively skewed 
D)  symmetrical

What measure of central tendency would be most appropriate to summarize data about the color of movie star's eyes?

Which of the following correctly described the changing religious affiliation of the US since 1990?

What is the median of the following set of twelve grades? 55 60 62 67 70 72 74 76 77 85 90 95

In a positively skewed distribution, the mean is

The mode should be used to measure central tendency when the level of measurement of the variable is

Which measure of central tendency is affected by every score in the distribution?

The SPSS exercise in the text using state homicide rates for 1995 and 2012 showed

A distribution of income for a sample of 45 people that consists of the presidents of the five largest corporations in the United States and forty assembly line workers would be

Introduction

Basic Descriptive Statistics Percentages, Ratios Rates, Tables, Charts Graphs

Measures of Dispersion

The Normal Curve

Introduction to Inferential Statistics Sampling the Sampling Distribution

Hypothesis Testing I the One-Sample Case

Hypothesis Testing II the Two-Sample Case

Hypothesis Testing III: the Analysis of Variance

Hypothesis Testing Iv Chi Square

Bivariate Association for Nominal- and Ordinal-Level Variables

Association Between Variables Measured at the Interval-Ratio Level

Partial Correlation and

Filters

Exam 3: Measures of Central Tendency

What measure of central tendency would be most appropriate to summarize data about the color of movie star's eyes?

Which of the following correctly described the changing religious affiliation of the US since 1990?

What is the median of the following set of twelve grades? 55 60 62 67 70 72 74 76 77 85 90 95

In a positively skewed distribution, the mean is

The mode should be used to measure central tendency when the level of measurement of the variable is

Which measure of central tendency is affected by every score in the distribution?

The SPSS exercise in the text using state homicide rates for 1995 and 2012 showed

A distribution of income for a sample of 45 people that consists of the presidents of the five largest corporations in the United States and forty assembly line workers would be

Introduction

Basic Descriptive Statistics Percentages, Ratios Rates, Tables, Charts Graphs

Measures of Dispersion

The Normal Curve

Introduction to Inferential Statistics Sampling the Sampling Distribution

Hypothesis Testing I the One-Sample Case

Hypothesis Testing II the Two-Sample Case

Hypothesis Testing III: the Analysis of Variance

Hypothesis Testing Iv Chi Square

Bivariate Association for Nominal- and Ordinal-Level Variables

Association Between Variables Measured at the Interval-Ratio Level

Partial Correlation and

Filters