Question 1:
Which of the following variables is a continuous quantitative variable?
A. Favorite fruit
B. Gender
C. Decade of birth
D. Age at first birth
E. Occupation
Question 2:
Which of the following variables is a nominal categorical variable?
A. Favor
QUIZ
Quiz 1
1. What is the primary benefit of randomization?
A. Improve patient recruitment.
B. Reduces costs.
C. Minimizes confounding.
D. Prevents recall bias.
2. Which of the following is a key benefit of both prospective and retrospective cohort
studi
Question 1:
If you toss a six-sided die, whats the probability that you roll a 3 or less?
A.
B.
C.
D.
E.
1/6
1/3
1/2
5/6
1.0
Question 2:
After a particular surgery patients can have up to 3 major adverse events. The
following table gives the probability d
QUIZ
Quiz 1
1. Whats good guess for the Pearsons correlation coefficient (r) for the scatter plot
above?
A. -1.0
B. +1.0
C. 0
D. -.5
E. -.01
2. Which of the following statements is TRUE?
A. The covariance is the standardized correlation coefficient.
B. A
Question 1
Is there a difference in the proportion of individuals with food allergies between young
children and adults? We plan to test
H0 : pchildren = padults, Ha : pchildren padults.
A survey finds that 13 among a random sample of 184 y
Weeks 10, 11
Monday 20th, 14.30-17.20, Special Lecture
Monday 27th, 14.30-17.20, Lecture
Regression, Inference for Regression, Multiple and
Logistic Regression, Transforming variables.
18th / 19th April and 2nd / 3rd of May 14.00-17.00
Turbo Version o
QUIZ
Quiz 1
1. Investigators compared mean cholesterol level between 100 smokers and 100
unrelated non-smokers. Which of the following is likely the most appropriate
statistical test for this comparison?
A. A two-sample t-test.
B. ANOVA
C. A paired t-test
QUIZ
Quiz 1
1. If the null hypothesis is true (there is no effect), you cannot make a Type II error.
A. True
B. False
2. What is statistical power?
A. The probability of getting a statistically significant result when the null hypothesis
is true.
B. The p
Ques%on 1
A survey is conducted on students taking a statistics class. Several
variables are measured in the survey. Which of these variables listed
below is not quantitative?
a. The number of credit hours taken during the quarter
b. The gender
c. The
QUIZ
Quiz 1
1. If you toss a six-sided die, whats the probability that you roll a 3 or less?
A. 1/6.
B. 1/3.
C. .
D. 5/6
E. 1.0.
Quiz 2
1. After a particular surgery, patients can have up to 3 major adverse events. The
following table gives the probabilit
Question 1:
Which of the following variables is a continuous quantitative variable?
A. Favorite fruit
B. Gender
C. Decade of birth
D. Age at first birth
E. Occupation
Question 2:
Which of the following variables is a nominal categorical variable?
A. Favor
Week 8
Monday 30th, 14.30-17.20, Lecture
Saturday 4th, No Tutorial
In MOODLE you will find
Lecture Slides
Homework (deadline for submission 27th of April)
Learning Objectives
Today We Cover
Comparing proportions
The Chi Square test for goodness of
In MOODLE you will find
Lecture Slides
Homework (deadline for submission 6th of April)
Advanced Reading Material
Learning Objectives
Today We Cover
Comparing means between two groups
Comparing means between more than 2 groups
Two way ANOVA
Tukeys
Recapitulation
We can produce data intended to answer specific questions by
observational studies or experiments. Experiments, unlike observational
studies, actively impose some treatment on the subjects of the experiment.
Observational studies often fa
Recapitulation
When a sample space S contains a finite number of possible values, a
discrete probability model, assigns each of these values a probability
between 0 and 1 such that the sum of all the probabilities are exactly 1.
The probability of any ev
Journal of Statistics Education, Volume 22, Number 2 (2014)
Investigating student understanding of histograms
Jennifer J. Kaplan
University of Georgia
John G. Gabrosek
Grand Valley State University
Phyllis Curtiss
Grand Valley State University
Chris Malon
Week 9
Monday 27th, 14.30-17.20, Lecture
Saturday 2nd, 09.00- Tutorial
In MOODLE you will find
Lecture Slides
Homework (deadline for submission 10th of May)
Learning Objectives
Today We Cover
Regression
Inference for Regression
Multiple and Logist
Week 6
Monday 2nd, 14.30-17.20, Lecture
Saturday 9th, 09.00- ~12.00, Tutorial
09.00- ~09.30, Follow Up of Lecture
~09.30-12.00, Training Using R
In MOODLE you will find
Lecture Slides
Homework (deadline for submission 16th of March)
Advanced Reading
In MOODLE you will find
Lecture Slides
Homework (deadline for submission 6th of April)
Advanced Reading Material
Learning Objectives
Today We Cover
Comparing means between two groups
Comparing means between more than 2 groups
Two way ANOVA
Tukeys
Week 7
Monday 23rd, 14.30-17.20, Lecture
Saturday 28th, 09.00- ~12.00, Tutorial
09.00- ~10.00, Follow Up of Lecture
~10.00-12.00, Training Using R
In MOODLE you will find
Lecture Slides
Homework (deadline for submission 6th of April)
Advanced Reading
1
BIOL 1608 Biostatistics
Assignment I Answer All Questions by Hand Writing
Deadline for Submission = 18 March (Tuesday, 6:30 pm)
Answer All Questions (all questions carry equal marks)
1) The following data are the lengths (measured by a ruler in cm; accu
Biostatistics (Assignment 2) Deadline: 10 April 2014
An Example,
Zinc concentrations were measured on 12 random samples taken from two industrial
effluents, A and B, and the results in 10-8 M zinc are given below. Given that the data are not
normally dist
Playing with R - BIOL2102 Tutorial
Tutor: Samuel KANG E-mail: [email protected]
Title <- 'Playing with R'
> Tutor <- 'Samuel Kang KANG
> Email <- [email protected]'
> Date <- 'Feb. 2016'
Playing with R - BIOL2102 Tutorial
Tutor: Samuel KANG E-mail: [email protected]
Key
Recapitulation
Some variables are categorical and others are quantitative. A categorical
variable places each individual into a category, like male or female. A
quantitative variable has numerical values that measure some
characteristic of each individua
Question 1:
What is the primary benefit of randomization?
A. Improve patient recruitment.
B. Reduces costs.
C. Minimizes confounding.
D. Prevents recall bias.
Question 2:
Which of the following is a key benefit of both prospective and retrospective cohort
Answers to Homework
Week 5
1. D
2. A
3. C
4. A
5. D
6. B
7. C
8. A
9. B
10. A
11. 0.025 (accept .01-.05)
12. 0.028
13. A
14. B
15. D and G
Week 6
1. D
2. B
3. A
4. C
5. A
6. B
Question 1
Investigators compared mean cholesterol level between 100 smokers and 100
unrelated non-smokers. Which of the following is likely the most appropriate
statistical test for this comparison?
A. A two-sample t-test.
B. ANOVA
C. A paired t-test.
D.
Question number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Answer
Important information:
1. You send your answers through email to Zheng Ti
<[email protected]>.
2. In the body of the email youshould attach the e
BIOL2102 / BIOL6007
Biostatistics
Lecture 3
Course coordinator: Dr. Janet K. Y. Chan
Hon. Assistant Professor & Lecturer
School of Biological Sciences
Ground Floor, Kadoorie Biological Sciences Building
The University of Hong Kong
Email: [email protected]
1
BIOL2102 / BIOL6007
Biostatistics
Lecture 2
Course coordinator: Dr. Janet K. Y. Chan
Hon. Assistant Professor & Lecturer
School of Biological Sciences
Ground Floor, Kadoorie Biological Sciences Building
The University of Hong Kong
Email: [email protected]
1
BIOL2102 Biostatistics /
BIOL6007 Biometrics
Lecture 1
Course coordinator: Dr. Janet K. Y. Chan
Hon. Assistant Professor & Lecturer
School of Biological Sciences
Ground Floor, Kadoorie Biological Sciences Building
The University of Hong Kong
Email: chanjk
BIOL2102 / BIOL6007
Biostatistics
Lecture 8
Course coordinator: Dr. Janet K. Y. Chan
Hon. Assistant Professor & Lecturer
School of Biological Sciences
Ground Floor, Kadoorie Biological Sciences Building
The University of Hong Kong
Email: [email protected]
1
BIOL2102/BIOL6007
Biostatistics 2016-17 Sem 2
Tutorial 3
Prepared by:
Dr. Edward Lau
School of Biological Sciences
The University of Hong Kong
What were going to do in the tutorials
Basic use of Excel for statistical analyses
Recap of important concepts