Chapter 5:
Measures of Variability
The Importance of Measuring Variability
IQV (Index of Qualitative Variation)
The Range
IQR (Inter-Quartile Range)
Variance
Standard Deviation
Considerations for choo
Social Statistics for a Diverse
Society
by Chava Frankfort-Nachmias and Anna
Leon-Guerrero
Chapter 1 What and Why of Statistics
Two Good Reasons to Learn Statistics
1. In general life, you are present
Chapter 5:
Measures of Dispersion
(Variability)
Ms. Sonya Worthington
Measures of Variability
defined as statistics that use a SINGLE number to
describe diversity or variation in a distribution
focu
Chapter 8: Estimation
Estimation Defined
Confidence Levels
Confidence Intervals
Confidence Interval Precision
Standard Error of the Mean
Sample Size
Standard Deviation
Confidence Intervals for Pro
Measures of
Central Tendency
Chapter 4
Ms. Sonya Worthington
Describing a Distribution.What do
we want to know?
2 types of statistics that help describe and
summarize data using a SINGLE NUMBER
(1) Me
Chapt. 1, Intro to SPSS and Math
Review
*Reminder: Calculators w/ Square Root
function
*Quick Example of Research Question
Step #3 Collecting Data
(continued)
Cumulative property of levels: higher ord
Graphic Presentation
Statistics for Sociologists 221 - Fall 2013 - Hourigan
Graphic Presentation
When writing up results for publications,
many people prefer graphs because they
tell stories in pictu
Chapter 4
Measures of Central Tendency
What is a measure of central tendency?
Measures of Central Tendency
Mode
Median
Mean
Shape of the Distribution
Choosing an Appropriate Measure of Central
Review: Spurious
Relationships
Example: (Where X=IV, Y=DV, and Z=Control Variable)
When we put our data into partial tables by categories of
control variable, Z, the relationship (% differences across
Chapter 12:
Measures of Association for
Nominal and Ordinal Variables
Proportional Reduction of Error (PRE)
Degree of Association
For Nominal Variables
Lambda
For Ordinal Variables
Gamma
Using
Chapter 6: Normal Distributions
Up to now, we have spent most of our time
looking at empirical distributions
The normal distribution, however, is
different than the distributions we have
looked at
Chapter 7:
Sampling and Sampling Distributions
Aims of Sampling
Basic Principles of Probability
Types of Random Samples
Sampling Distributions
Sampling Distribution of the Mean
Standard Error of the M
Chapter 10: Cross-Tabulation
Relationships Between Variables
Independent and Dependent Variables
Constructing a Bivariate Table
Computing Percentages in a Bivariate Table
Properties of a Bivariate
Testing Hypotheses 261
Figure 9.1 Sampling Distribution of Sample Means Assuming H0 Is True for a Sample N = 100
= $2.86
Y
Y
= $3.11
Because this distribution of sample means is normal, we can use Ap
Graphic Presentation
When writing up results for publications, many
people prefer graphs because they tell stories
in pictures, not just numbers
Can show patterns (graphs) and specific data
about stat
Chapter 12:
Measures of Association for
Nominal and Ordinal Variables
Proportional Reduction of Error (PRE)
Degree of Association
For Nominal Variables
Lambda
For Ordinal Variables
Gamma
Using
Chapter 9: Testing Hypotheses
Overview
Research and null hypotheses
One and two-tailed tests
Type I and II Errors
Testing the difference between two
means
t tests
Frankfort-Nachmias and Leon-Guerrero
REALISM AND 18TH- AND 19TH-CENTURY ARCHITECTURE
April 12, 2016
IMAGES:
1
Gustave Courbet, The Stone Breakers, 1849. Oil on canvas, 53 x 86,
formerly at Gemldegalerie, Dresden (destroyed 1945). [Gardne
Week 11 Resource Endowment- water resources
Water-a critical resource of Africa-a resource that is
fundamental for any type of development, is unevenly
distributed across the continent of Africa. The
Week 5.2
Pre-Colonial era
The cradle of humankind
The English naturalist Charles Darwin proposed his theory of
evolution in 1859. he suggested that the birthplace oh humankind
was probably Africa. Thi
Politics in the 1960s
November 2, 2016
Song: Beach Boys, Im Waiting for
the Day
Introduction
Goal of Lecture: to discuss politics in the 1960s and
especially liberalism (and liberal programs) at high
ANT 201
CONSPIRACY THEORIES AND DENIALISM
Distinction between real conspiracies and grand
conspiracies or PCTs
Examples of real conspiracies?
Church hiding pedophile priests; doping in pro-cycling
Pr
The Rise of Segregation in the
late 19th Century South
September 19, 2016
Song: Good Lord (Run Old Jeremiah), Austin
Coleman and Joe Brown Washington
Introduction Part 1
Stability and Change in the L
AANT 201
Cryptozoology
Definition
Crypto=Hidden; Zoology=study of animals
Study of undiscovered animals
i.e. the study of something we dont know actually exists
Many new animal species discovered
PSEUDOARCHAEOLOGY
Aliens and Atlantis and other crazy
stuf
What archaeology is (and isnt)
Understanding past cultures through material
culture
As opposed to treasure hunting and looting
Fragmentary ev
Chapter 9
Testing Hypotheses
Statistical Hypothesis Testing
A procedure that allows us to evaluate
hypotheses about population parameters
based on sample statistics
Statistical Hypothesis Testing
Hy
Chapter 8
Estimation
Estimation
A process whereby we select a random sample
from a population and use a sample statistic to
estimate a population parameter
We can use sample proportions as estimates
Chapter 6
The Normal Distribution
Normal Distribution
A bell-shaped and symmetrical theoretical
distribution, with the mean, the median, and
the mode all coinciding at its peak and with
frequencies g
Chapter 7
Sampling and Sampling Distributions
Sampling
Population
A group that includes all the cases in which the
researcher is interested
Individuals, objects, or groups
Sample
A relatively sma