Correlation and Regression
Major topics
correlation coefficients definitions & properties
regression line interpretation & prediction
cautions for regression and correlation
Example: Blood Alcohol Content (BAC)
In 1996, an undergraduate statistics proj
Sampling vocabulary & strategies
Major topics:
sampling vocabulary (sample, population, etc.)
sampling (selection) bias
types of sampling
SRS, random, stratified, cluster, systematic
other strategies
Sampling
process of selecting a subset of units fr
Looking for me?
Jennifer Waugh
Dept. of Statistical & Actuarial
Sciences and Dept. of Biology
and Brescia University College
Contact: OWL messages
(use Instructor Role)
Drop-in hours: Tuesdays, 9:00-11:00 am, WSC 276
Blended course continuum
integration o
Types of data and Group dynamics
Being successful in our course
Do the independent study tasks on schedule
Try some textbook questions regularly
Engage with the activities in classes
Complete the quizzes & surveys on time
Seek help on a regular basis
Density curves and normal distributions
Major Topics:
density histograms and curves
normal distributions
standardized scores
deriving the empirical rule
Density histogram
histogram with the vertical axis rescaled so that the
area of the bars sums to 1
audit:
auditor or auditee
third-party audit you
tax auditing (both profitabe and nonprofitable organization) (3)
1. sales tax: a review to ensure the bookkeeping is in place (profitable&non-profitable)
ex: a store selling product will be charged by tax
Go
management accounting
role for accounting:
help decisions for both internal and external
External users:
type of decisions: should I invest/lend?
information needs:
1. differ across users, can't feed everybodys need
2. not cost effective
3. confidentialit
Exam: 75 questions 15 TF 60MC
Scantron
Monday Tuesday Wednesday
Accounting information system:
How do i recoed how much i bought?
Depends on the size of business, decides detail and how cpmplex
Simple eole, comples, walmart
Economic event change the value
Statistical Science 1024
Chapter 10
Introducing Probability
Chapter Overview
Probability
Probability models and rules
Finite and discrete probability models
Continuous probability models
Random variables
The idea of probability
Long-run Frequencies:
Statistical Science 1024
Chapter 18
Inference about a Population Mean
Chapter Overview
Conditions for inference about a mean
t distribution
The one-sample t confidence interval
Matched pairs t procedure
Robustness of t procedure
Known Standard Deviat
Graphs and Normal Distributions
Major Topics
Deriving the empirical rule
Empirical rule applications
Characteristics of fair graphs
The empirical rule
If your data have a normal distribution, then
-3
-2
-1
68%
+1
+2
+3
Examples
Student height is normal
Numerical and Graphical Summaries
Major Topics
Measures of centre, spread, and shape
Histograms
5-number summary and boxplots
Outliers
The data
Is there a
difference
between male
and female heart
rates?
Is there a typical
heart rate for each
biologica
Contingency, risks, and odds
Major topics:
two-way tables
marginal and conditional distributions
risks and variations of risk
odds
Class size and year at Western
Each year, the University categorizes the class size
(i.e. # of students) for each course
Ethics
Major Topics
Issues with obtaining consent
Issues with equity
Issues with obtaining consent
free consent may be compromised
unusually attractive incentives
authority relationships and undue influence
individuals may not have capacity to consent
Ethics
Major Topics
Issues with obtaining consent
Issues with equity
Issues with obtaining consent
free consent may be compromised
unusually attractive incentives
authority relationships and undue influence
individuals may not have capacity to consent
Experimental Principles
Major Topics
Causation vs Association
Confounding
Principles of Experimental Design
Observational studies
Issues?
Principles of experimental design
1. replication repetition of experiment for different
units within a study
2. co
Avoiding bias in sampling and surveys
Major Topics
Practice with sampling strategies
Defining and describing measurements
Problems and considerations for survey questions
Discuss
Suppose the Registrars Office was interested
in estimating how much Weste
Vocabulary and study types
Major Topics:
variable, variables, treatment
types of studies
observational vs experiment
types of experiments
Variables
characteristics that can take on different values
explanatory variable: thought to
have an influence or
Cautions for risks and odds
Major Topics
Relationships between risks and odds
Cautions for interpreting risks and odds
Converting risks and odds
1. What is wrong with this statement?
A television marketing contest states that the
odds of winning are 1 i
Introduction to Research Ethics in Canada
Main Topics:
Core principles in Canadian research
requirements for informed consent
consideration of risks and benefits
fairness & equity
privacy, confidentiality, & anonymity
What is ethics?
the study of sta
Stat 1023B
Assignment 1
Assignment 1:
Applying Statistical Vocabulary
Introduction
The underlying goal of this course is to help you develop your Statistical Literacy; this is the knowledge
base and skills necessary to understand, evaluate, and ultimately
Statistical Science 1024
Chapter 5
Regression
Chapter Overview
Regression Line
Least-square regression and its properties
Residuals and Residual plots
Influential observations
Cautions about correlation and regression
Association and causation
Revie
Statistical Science 1024
Chapter 11
Sampling Distributions
Chapter Overview
Parameters and statistics
Statistical estimations and Law of Large Numbers
Sampling distributions, i.e. sample average
The Central limit theorem
Parameters and Statistics
The
SS1023A / SS2037A
Week 4 - Ethics
(Chapter 26)
Week 4 - Ethics
2
Chapter 26 Ethics in Statistical
Studies
Chapter objectives
For each of the three issues of ethics
Understand what it encompasses
Be able to summarize the example that illustrates the issu
SS1023A / SS2037A
Week 2 Planning Statistical Studies
(Chapters 3 and 4)
Week 2 - Planning Statistical Studies
2
Chapter 3 Measurements, Mistakes,
and Misunderstandings
Chapter objectives
Be able to identify and understand what pitfall(s) a
given question
SS1023A / SS2037A
Week 1 Statistics in the Media
(Chapters 1 and 2)
Week 1 Statistics in the Media
2
Chapter 1 The Benefits and Risks of
Using Statistics
Chapter objectives
Know the definition of statistics
Identify the steps of statistics as a problem so
Sleep Deprived? Your Looks May Suffer (C3,4,7 not enough)
Component 1 - The source of the research and of the funding.
The author of the study is John Axelsson, PhD, an associate professor of clinical
neuroscience. But we don't know who fund the research.
SS1023A Assignment 1
Critiquing Media Coverage of Statistical Results
Due: 1:30pm on Tuesday, October 4, 2011
Formatting Guidelines
Length: One single-
sided page maximum.
Font: 12pt Times New Roman, single spacing
Ma
SS1023A Assignment 2
Due: 1:30pm on Tuesday, November 15, 2011
Formatting Guidelines
Length: One single-sided page maximum.
Font: 12pt Times New Roman, single spacing
Margins: 0.8 inches (2 cm) minimum margin on all sides.
File format: .rtf, .doc, .docx o
30% before midterm and 70% after midterm
the question most people got wrong will appear again
the final term will in student center, not in the Webct
SS1023A/SS2037A Fall 2011 Final Exam Information
Date: Friday December 16, 2011
Time and Duration
2:00pm
Statistical Science 1024
Chapter 21
Comparing Two Proportions
Chapter Overview
Two-sample problems: proportions
The sampling distribution of a difference between
proportions
Large-sample confidence intervals for comparing
proportions
Accurate confiden
Statistical Science 1024
Chapter 12
General Rules of Probability
Chapter Overview
General addition rule
Independence and multiplication rule
Conditional probability
General multiplication rule
Tree diagram
Basic probability rules
Everything in this
Statistical Science 1024
Chapter 15
Tests of Significance: The Basics
Chapter Overview
The reasoning of test of significance
Stating hypotheses
p-value and statistical significance
Tests for a population mean
Note: We will assume the simple conditions
Statistical Science 1024
Chapter 16
Inference in Practice
Chapter Overview
Conditions for inference in practice
Cautions about confidence intervals
Cautions about significance tests
Sample size for confidence intervals
The power of a statistical test
Statistical Science 1024
Chapter 20
Inference about a Population Proportion
Chapter Overview
The sample proportion
Large-sample confidence intervals for a population
Accurate confidence intervals for a proportion
Choosing the sample size
Significance