T-Tests: A Matched Pair Made in Heaven S01E27
Today we're going to walk through a couple of statistical approaches to answer the question: "is coffee from the local cafe, Caf-fiend, better than that other cafe, The Blend Den?" We'll build a two sample t-test which will tell us how many standard errors away from the mean our observed difference is in our tasting experiment, and then we'll introduce a matched pair t-tests which allow us to remove variation in the experiment. All of these approaches rely on the test statistic framework we introduced last episode.
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1
What Is Statistics
2
Mathematical Thinking
3
Mean, Median, and Mode: Measures of Central Tendency
4
Measures of Spread
5
Charts Are Like Pasta - Data Visualization Part 1
6
Plots, Outliers, and Justin Timberlake: Data Visualization Part 2
7
The Shape of Data: Distributions
8
Correlation Doesn’t Equal Causation
9
Controlled Experiments
10
Sampling Methods and Bias with Surveys
11
Science Journalism
12
Henrietta Lacks, the Tuskegee Experiment, and Ethical Data Collection
13
Probability Part 1: Rules and Patterns
14
Probability Part 2: Updating Your Beliefs with Bayes
15
The Binomial Distribution
16
Geometric Distributions and The Birthday Paradox
17
Randomness
18
Z-Scores and Percentiles
19
The Normal Distribution
20
Confidence Intervals
21
How P-Values Help Us Test Hypotheses
22
P-Value Problems
23
Playing with Power: P-Values Pt 3
24
You Know I’m All About that Bayes
25
Bayes in Science and Everyday Life
26
Test Statistics
27
T-Tests: A Matched Pair Made in Heaven
28
Degrees of Freedom and Effect Sizes
29
Chi-Square Tests
30
P-Hacking
31
The Replication Crisis
32
Regression
33
ANOVA
34
ANOVA Part 2: Dealing with Intersectional Groups
35
Fitting Models Is like Tetris
36
Supervised Machine Learning
37
Unsupervised Machine Learning
38
Intro to Big Data
39
Big Data Problems
40
Statistics in the Courts
41
Neural Networks
42
War
43
When Predictions Fail
44
When Predictions Succeed
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