MDCH 610: Essentials of Biostatistics
Practice Problems
1. Scores on a standardized exam are assumed to follow a normal distribution, with a mean of 100 and
standard deviation of 32.
a. If a simple random sample of 5 exams is selected, what is the mean ex

Non-Parametric Tests
Question 1. A dental research team wished to know if teaching people how to brush their teeth
would be beneficial. Twelve pairs of patients seen in a dental clinic were obtained by carefully
matching on such factors as age, sex, intel

MDCH 610: Essentials of Biostatistics
Practice Problems
1. Describe the following two bar graphs. How are they similar? How are they different?
2.
b
components of the following box plot. Use the STATA output to help you determine the fivenumber summary, t

1. Go to the course in d2L
2. Lecture folder > Stata Session
3. Download both seventhgradev2 files to
desktop
*Make sure you delete these files once you are
done tutorial
Jessalyn Holodinsky, Stephanie Coward, and Lauren Hirsch
STATA 13 (or 14)
Interface

Essentials of Biostatistics
MDCH 610 Lecture 2
September 15, 2015
Tyler Williamson, 2015
ESSENTIALS OF BIOSTATISTICS
Session 2 September 15, 2015
After Session 2, the student should be able to:
1. Define and describe the characteristics (and calculati

Essentials of Biostatistics
MDCH 610 Lecture 4
September 22, 2014
Tyler Williamson, 2015
ESSENTIALS OF BIOSTATISTICS
Session 4 September 22, 2015
After Session 4, the student should be able to:
1. Explain the Central Limit Theorem.
2. Describe the pro

CUMMING SCHOOL OF MEDICINE
GRADUATE COURSE OUTLINE
MDCH 610
Biostatistics I: Essentials of Biostatistics
Fall 2015
Course Coordinator/
Instructor
Dr. Tyler Williamson
Assistant Professor, Department of Community Health Sciences
TRW Building 3rd Floor

Essentials of Biostatistics
MDCH 610 Lecture 3
September 17, 2015
Tyler Williamson, 2015
ESSENTIALS OF BIOSTATISTICS
Session 3 September 17, 2015
After Session 3, the student should be able to:
1.
2.
3.
4.
Describe the concept of probability in lay te

Pregnancy and Inflammatory Bowel Disease:
Does the type of disease change pregnancy outcomes?
1Department
INTRODUCTION
YOUR NAME HERE1
of Community Health Sciences (or wherever you belong), University of Calgary
RESULTS
Inflammatory bowel disease (IBD) is

Essential of Biostatistics: First Test
OCTOBER 13, 2015 from 1pm to 3:20pm in TUTORAL ROOMS
Closed Book, Calculator Required, Tables Supplied
Material Covered on the Midterm Exam:
- Lectures 1 through 9 with an emphasis on the material up to
Lecture 7
- H

Tips for Success in MDCH 610
Jessalyn Holodinsky
Stephanie Coward
Lauren Hirsch
Assignment Formatting
Question # and text included
Calculations shown
(can be hand
written if legible)
Stata output included (in
Courier size 9!)
All parts of the question in

Essentials of Biostatistics
MDCH 610 Lecture 19
ESSENTIALS OF BIOSTATISTICS
Session 19
After Session 19, the student should be able to:
1. Explain the difference between using change scores and using
analysis of covariance to compare two independent grou

MDCH 610: Essentials of Biostatistics
Practice Problems
1.
A survey of students in a biostatistics course asked the following questions:
(a) age?
(b) do you like jazz? (yes, no)
(c) can you bake an apple pie? (youll get food poisoning, probably not, yes,

MDCH 610: Essentials of Biostatistics
Practice Problems
1.
The National Health and Nutrition Examination Survey of 19881994 estimated the mean
serum cholesterol level for U.S. females aged 2074 years to be 204 mg/dl. The estimate of
the standard deviation

Whats wrong?
If the popula4on standard devia4on is 20,
then the standard devia4on of x for a sample
of 10 observa4ons will be 20/10=2.
When taking samples from a larger
popula4on, larger sample sizes will result

Essentials of Biostatistics
MDCH 610 Lecture 14!
ESSENTIALS OF BIOSTATISTICS
Session 14
After Session 14, the student should be able to:
1. Explain the basis of the chi-square test and its requirements
for validity.
2. Compare two proportions for statis

Essentials of Biostatistics
MDCH 610 Lecture 18
ESSENTIALS OF BIOSTATISTICS
Session 18
After Session 18, the student should be able to:
1. List the five assumptions underlying inferences about the slope
coefficient.
2. Use STATA to test the slope coeffic

Essentials of Biostatistics
MDCH 610 Lecture 11
ESSENTIALS OF BIOSTATISTICS
Session 11
After Session 11, the student should be able to:
1. Compute a confidence interval about a mean difference.
2. Explain the relationship between a confidence interval

Essentials of Biostatistics
MDCH 610 Lecture 17
ESSENTIALS OF BIOSTATISTICS
Session 17
After Session 1 7, the student should be able to:
1. Construct a scattergram.
2. Interpret the magnitude and direction of a correlation
coefficient.
3. Explain the di

Essentials of Biostatistics
MDCH 610 Lecture 15
ESSENTIALS OF BIOSTATISTICS
Session 15
After Session 15, the student should be able to:
1. Write down the formula for a confidence interval about the
difference of two independent proportions, and be able

Essentials of Biostatistics
MDCH 610 Lecture 16
ESSENTIALS OF BIOSTATISTICS
Session 16
After Session 16, the student should be able to:
1. Write down the formula for a test of dependent proportions
(McNemars test).
2. Perform tests of dependent proport

Essentials of Biostatistics
MDCH 610 Lecture 13
ESSENTIALS OF BIOSTATISTICS
Session 13
After Session 13, the student should be able to:
1. Describe the intuitive process for calculating between-group
and within-group variability.
2. Calculate the relat

Essentials of Biostatistics
MDCH 610 Lecture 12
ESSENTIALS OF BIOSTATISTICS
Session 12
After Session 12, the student should be able to:
1. Explain the difference between non-parametric and parametric
tests.
2. State the advantages and disadvantages of

Essentials of Biostatistics
MDCH 610 Lecture 6
ESSENTIALS OF BIOSTATISTICS
Session 6
After Session 6, the student should be able to:
1.
2.
3.
4.
Explain when to and when not to transform data.
Differentiate between a null and an alternative hypothesis.

Essentials of Biostatistics
MDCH 610 Lecture 5
ESSENTIALS OF BIOSTATISTICS
Session 5
After Session 5, the student should be able to:
1.
2.
3.
4.
Explain the purposes of confidence intervals.
List the properties of the t-distribution.
Solve questions us

Essentials of Biostatistics
MDCH 610 Lecture 10
ESSENTIALS OF BIOSTATISTICS
Session 10
After Session 10, the student should be able to:
1. Write down the formula for an unpaired (two-sample) t-test,
and be able to solve numerical questions by hand and

Essentials of Biostatistics
MDCH 610 Lecture 7
ESSENTIALS OF BIOSTATISTICS
Session 7
After Session 7, the student should be able to:
1. Use non-statistical language to explain the results of
hypothesis tests of one-sample means.
2. Compare and contrast

Essentials of Biostatistics
MDCH 610 Lecture 9
ESSENTIALS OF BIOSTATISTICS
Session 9
After Session 9, the student should be able to:
1. Identify the four components of a sample size formula and
describe their effects on the number of observations requi