BIOSTATS 540 - Fall 2022
Introduction to Biostatistics
Biostatistics and Epidemiology
UMass Amherst
Instructor: Carol Bigelow



For Students


This Week

Unit Lecture Notes

Unit Tests


Other Resources

Course Unit Pages

1. Summarizing Data

2. Data Visualization

3. Probability: Basics

4. Probabilities in Epidemiology

5. Populations and Samples

6. Bernoulli and Binomal Distributions

7. Normal Distribution

8. Statistical Literacy: Estimation and Hypothesis Testing

9. One Sample Inference

10. Two Sample Inference

11. Chi Square Tests

12. Simple Linear Regression and Correlation


Unit 11. Chi Square Tests

1. Introduction
2. Learning Module
3. Activities
4. Resources

(1) Introduction
Video (Source: Global Health With Greg Martin) Statistics Made Easy: Learn about the T-Test, Chi Square Test, P-value and more (video, 12:49)
(Source: Whitlock and Schluter, Biology 300) - Overheads 09: Contingency Analysis - Associations Between Categorical Variables (pdf, 5 slides)


(2) Learning Module
BIOSTATS 540 Fall 2022 Course notes, 11. Chi Square Tests and Fisher's Exact Test (pdf, 40 pp)
CHI SQUARE DISTRIBUTION CALCULATOR (Source:  Agresti, Franklin, Klingenberg) Chi Square Distribution Calculator (html)
FISHER EXACT TEST CALCULATOR (Source:  Agresti, Franklin, Klingenberg) Fisher Exact Test Calculator (html)
CHI SQUARE TEST CALCULATOR (Source:  Vassar Stats) Chi Square Test .. for contingency table (html)


(3) Activities
R Users
Fall 2022 Learn R 07 - The 2x2 Table (pdf, 10 pp)


(4) Resources
Video (Source: MarinStats Lectures) Pearson's Chi Square Test of Independence (video, 24:25)
ppt INTRODUCTION (Source: Whitlock and Schluter ) Overheads 9 - Contingency Table Analyses (pdf, 5 slides)
ppt INTRODUCTION (Source: Marie Diener-West, JHSPH) - Uses of the Chi Square Statistic (pdf, 42 slides)



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Page updated: December 6, 2022