BIOSTATS 640
Intermediate Biostatistics
Biostatistics and Epidemiology
UMass Amherst

 

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This Week
Lecture Notes
Assignments (Homeworks & Exams)
Computer Illustrations
Other Resources

Links, by Topic

1. Review of BIOSTATS 540
2. Discrete Distributions

3. Introduction to Nonparametrics

4. Categorical Data Analysis

5. Normal Theory Regression
6. Analysis of Variance

7. Logistic Regression
8. Introduction to Survival Analysis
9. (Time permitting) Introduction to Mixed Models


Assignments (Homeworks and Exams)

Scroll down for (1) Homeworks and Solutions (2) Data sets and (3) Exams and Solutions (by email request ONLY)

 

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Homeworks

Week Topic Assigned Due Exercises Solutions
1
HW #1
1. Review of BIOSTATS 540
2/1/2021
EXTENDED
Monday
2/15/2021
Questions (pdf, 5 pp)
R Users
Download
BIOSTATS640_hw01_q2.Rdata


Stata Users
Download
BIOSTATS640_hw01_q2.dta

Excel Download
BIOSTATS640_hw01_q2.xlsx

SOLUTIONS
R Users
(pdf, 13 pp)

STATA Users
(pdf, 13 pp)


2 HW #2
2. Discrete Distributions
2/7/2021
Friday
2/19/2021
Questions
(pdf, 1 pp)

SOLUTIONS
R Users
(pdf, 5 pp)

STATA Users
(pdf, 3 pp)


3 HW #3
3. Introduction to Nonparametrics
2/14/2021
Friday
2/26/2021
Questions
(pdf, 2 pp)


SOLUTIONS
R Users
(pdf, 6 pp)

Stata Users
(pdf, 8 pp)


4
HW #4
4. Categorical Data Analysis
2/24/2021
Friday
3/12/2021
Questions
(pdf, 4 pp)

Stata Users
Download (hw_categorical.dta)

SOLUTIONS
R Users
(pdf, 11 pp)

STATA Users
(pdf, 14 pp)


5 HW #5
5. Regression & Correlation
3/8/2021
Friday
3/26/2021
Questions
(pdf, 6 pp)
R Users
Download
hw_regression.Rdata
hersdata_small.Rdata

Stata Users
Download
hw_regression.dta
hersdata_small.dta

SOLUTIONS
R Users
(pdf, 16 pp)

STATA Users
(pdf, 15 pp)


6 HW #6
6. Analysis of Variance
3/28/2021
Friday
4/16/2021

Questions (pdf, 5 pp)
R Users
Download
anova_infants.Rdata
fishgrowth.Rdata

Stata Users
Download
anova_infants.dta
fishgrowth.dta

Excel Datasets
anova_infants.csv
fishgrowth.csv


SOLUTIONS
R Users
(pdf, 13 pp)

STATA Users
(pdf, 12 pp)


7
HW #7
7. Logistic Regression
4/14/2021
Friday
4/30/2021

Questions (pdf, 4 pp)
R Users
Download
depress.Rdata
illeetvilaine.Rdata

Stata Users
Download
depress_small.dta
depress.dta
illeetvilaine.dta

Excel Users Download (depress.csv) and (illeetvilaine.csv)

SOLUTIONS
corrected 4/27/2021
R Users (pdf, 11 pp)



STATA Users
(pdf, 11 pp)


8
HW #8
8. Introduction to Survival Analysis
4/26/2021
OPTIONAL
full credit given
Questions
(pdf, 2 pp)

SOLUTIONS
R Users
(pdf, 10 pp)

STATA Users
(pdf, 11 pp)


Exams

Exam Topics Posting Date Due Date Questions Solutions
1 1. Review of BIOSTATS 540
2. Discrete Distributions
3. Introduction to Nonparametrics
2-22-2021 3-8-2021 Questions
(pdf, 14 pp)
Solutions
(by email request)
2 4. Categorical Data Analysis
5. Logistic Regression
3-29-2021 4-12-2021 Questions
(pdf, 15 pp)
Solutions
(by email request)
3 6. Analysis of Variance
7. Logistic Regression
8. Introduction to Survival Analysis
4-23-2021 5-7-2021 Questions
(pdf, 23 pp)
Solutions
(by email request)




 

 

 

 

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Page updated: April 27, 2021