Part I: Data Cleaning
In order to clean the data, I first examined the raw data sets to see if there were any
missing entries. I saw that there were two missing entries under cognitive functioning, so I
calculated the mean of the data set (which was 4) an
Overview Week 4
1.
Probability, continued
2.
Risks vs. Odds
3.
Sampling Distributions
4.
Hypothesis Testing
One more look at
STATISTICAL
PROBABILITY
One More Look at Probability
Distribution of colours in a box of Smarties
ANALYTIC VIEW: What is the
prob
PS296
Introduction to Statistics
Spring 2015
Overview Week 2
Lecture 4 May 14, 2015
1.
Descriptive statistics, continued
a. Measures of variability
b. Shape of a distribution
2.
Transformations
3.
The normal distribution
Measures of Variability
Degrees o
Overview Week 3
Lecture 5 May 19, 2015
1.
The Standard Normal Distribution
a. Z scores
b. Percentiles
THE STANDARD NORMAL
DISTRIBUTION
Z SCORES
Standard Normal Distribution
Standard Normal Distribution
A normal distribution with a mean () of 0 and a
stand
PS296
Introduction to Statistics
Spring 2015
Overview Week 4
1.
Homework Problems!
2.
Probability
3.
Risks vs. Odds
4.
Sampling Distributions
5.
Hypothesis Testing
HOMEWORK
PROBLEMS
Standard Normal Distribution
More practice still
Victoria went to the La
Overview Week 2
1.
Descriptive statistics, continued
a. Measures of central tendency
b. Measures of variability
Pop Quiz - Class Data
6
7
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5
7
4
7
5
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6
4
6
4
5
4
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Calculate the mean, median and mode
Sketch a graph of the data
Measures of C
PS296
Introduction to Statistics
Spring 2015
Overview Week 1
1.
Introduction to the course
2.
Introduction to statistics
3.
Important concepts and definitions
4.
Scales of measurement
5.
Numbers and notation
6.
Displaying data
7.
Descriptive statistics
In
Overview Week 3
Lecture 6 May 21, 2015
1.
The Standard Normal Distribution
a. Percentiles
b. Empirical rule
c. Steps, more problems and practice
PERCENTILES
Standard Normal Distribution
Percentile
The point below which a specified percentage of
scores fal
Overview Week 6
1.
Hypothesis Testing
2.
Correlation
HYPOTHESIS
TESTING
Hypothesis Testing
Hypothesis
A claim about a population parameter.
We study samples, but we often want to make
predictions about the population.
Hypothesis Testing
Research Hypothe
PS296
Introduction to Statistics
Spring 2015
Overview Week 5
1.
Sampling Distributions
2.
Midterm review
3.
Midterm- Thursday!
SAMPLING
DISTRIBUTIONS
Sampling Distributions
Sampling Distribution of the mean
The distribution of sample means over repeated