Questions & Answers
The following table comes from a paper that examined the relationship between the
duration of breast feeding as an infant and the presence of overweight or obesity at
age 18 years
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 ben
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 covari
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 a
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 adve
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.
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 followin
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 comparis
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 k
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 signif
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?
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 cred
LIPIDS I
Dr. Jetty C.Y. Lee
School of Biological Sciences
6S-09 Kadoorie Biological Sciences Building
Email: [email protected]
1
2
Learning Outcomes
Students will learn the types of lipids found in foo
Demand-side management:
A case study of Smart Grids ()
Daphne Mah
Assistant Professor, Department of Geography
Director, Asian Energy Studies Centre, Hong Kong Baptist University
23 March, 2016
1
(Gra
0)
Education and Manpower Bureau
Territory-Wide System Assessment 2005
Primary 6
English Language
Reading and Writing
Instructions:
1. There are 18 pages in this booklet.
2. Answer all questions.
3. T
4/5/2016
Challenges & Opportunities in pursuing
Energy Efficiency for HK Society
Ir Colin CHUNG
Director of HK Green Building Council
6 April 2016
About the HKGBC
1
4/5/2016
A Network of Strong Suppor
Climate Change and Carbon
Trading
Dr Alex Lo
Assistant Professor
The Kadoorie Institute
Overview
Climate change and background
Key features of emission trading
European Unions experience
Chinas ex
In MOODLE you will find
Lecture Slides
Homework (deadline for submission three weeks from today)
Advanced Reading Material
Learning Objectives
Today We Cover
Type I and Type II errors
Statistica
Playing with R - BIOL2102 Tutorial
Tutor: Samuel KANG E-mail: [email protected]
Title <- 'Playing with R'
> Tutor <- 'Samuel Kang KANG
> Email <- [email protected]'
> Date <- 'Jan. 2016'
Playing with R - BIOL21
Playing with R - BIOL2102 Tutorial
Tutor: Samuel KANG E-mail: [email protected]
Title <- 'Playing with R'
Tutor <- c(Samuel Kang KANG, Bernard NI)
Email <- [email protected]'
Date <- 'Mar. 2016'
Playing with R
ID
Group
1
Mutation
1 Control
1
2 Control
0
3 Control
0
4 Control
0
5 Control
0
6 Control
1
7 Control
0
8 Control
0
9 Control
0
10 Control
0
11 Control
0
12 Control
1
13 Control
0
14 Control
0
15 Cont
BIOL2102/BIOL6007 Biostatistics (2016-17)
T2 - Basic statistics
Revision on descriptive statistics using EXCEL
1. Open the EXCEL file BIOL2102 T1 Data File
2. Find n, mean, SD, variance, max, min and
BIOL2102/BIOL6007 Biostatistics (2016-17)
T5 Exercise
1.
A study has been conducted to compare the change in total soil nitrogen content in 12
plots after 10 years time to investigate whether the nitr
BIOL2102/BIOL6007 Biostatistics (2016-17)
T4 Comparing 2 samples
2-sample t-test:
(to compare the population means of two independent samples)
Excel
1. Open the EXCEL file BIOL2102 T4 Excel
2. Select
BIOL2102 In-class exercise
Q1
You might theorize that men and women who marry tend to have similar IQ. To test this theory, you randomly
select 30 married individuals and measure the IQ of each spouse
BIOL2102 In-class exercise
Q1
You might theorize that men and women who marry tend to have similar IQ. To test this theory, you randomly
select 30 married individuals and measure the IQ of each spouse