STAT 252
LAB Q2
Assignment #2
Chen Wang
1443497
Question 1.
(a). 1050 cancer patients in different stages of disease and 350 healthy people are classified into 4
groups called Benign, Primary, Recurrent and Control. The LSA measurements (mg/dl) were taken
EXERCICE PRPARATOIRE : Les
macromolcules
Les macromolcules sont des molcules organiques complexes constitues partir de molcules organiques
simples. Cet exercice vous apportera une vue densemble de ce qui dfinit une macromolcule ainsi que la
structure fond
Biology 108 Library Assignment W17
Due at the beginning of Lab 2
Student name: Chen Wang
Fall 2015
Part I: Library Research
/22 marks
Objective: The following questions will give you experience conducting library research, as well as reading and
analyzing
Name: Chen Wang
TA: Justin Shave
Lab Section: H22
Lab 3 Writing Assignment
Use this template to complete the Lab 3 writing assignment (a report outline). Type your answers
directly into the spaces provided. The purpose of this assignment is to practice co
STAT 252
LAB Q2
Assignment #3
Chen Wang
1443497
Question 1.
(a). Because samples are not randomly assigned, it is an observational study.
(b). Because these diseases affect respiratory rate. The result will be inaccuracy.
(c). Because these diseases does
Chen Wang
March 14, 2017
TA: Justin Shave
Lab Section: H22
Artemia franciscana: favorite habitat in each of pH,
temperature and light gradients
Introduction
By understanding how organism interact with their environment, we can better
manage crucial habita
BIOL 108 Lecture 6: Evolution III
Instructor: Dr Neil Harris
Winter 2017
Evidence of evolution
Evolution is supported by an overwhelming amount of
scientific evidence:
1. Observation of populations changing in real-time.
2. Artificial selection.
3. Bioch
EXERCICE PRPARATOIRE : Les macromolcules
Les macromolcules sont des molcules organiques complexes constitues partir de molcules organiques
simples. Cet exercice vous apportera une vue densemble de ce qui dfinit une macromolcule ainsi que la
structure fond
STAT 252
LAB Q2
Assignment #1
Chen Wang
1443497
Question 1.
(a). This is a randomized experiment
130 randomly selected guinea pigs were randomly assigned either to a control group or to a
treatment group.
(b). Population inference: random selection
Causal
LEffet de la Temprature sur la Membrane Cellulaire des Betteraves
Chen Wang (1443497)
Rsume
La membrane cellulaire est dcrit comme fluide et semi-permable, alors les
tempratures varies vont affecter son permabilit et comportement. En
utilisant un spectrop
STAT 252
LAB Q2
Assignment #4
Chen Wang
1443497
Question 1.
(a). The time of extinction and the number of pairs are linearly and positively relative.
The pattern of association has strong evidence for large size and weak evidence for small size.
There is
Statistics 252 Homework # 2 Fall 2015
STAT 252 Homework 2 (55 marks) Due Wednesday, October 14 by 10 pm
Show all your work and include appropriate justification to receive full credit for a solution. Single numerical
answers (unless indicated) will not re
Lab 3: Simple Linear Regression Respiratory Rates for Children
1) (a) The study design is observational study. Observational study is the study in which the individuals
are pre-classified into the different treatment groups. The experimenter has no contro
1.a) There is a positive association between number of pairs and time it takes for extinction.
Although the data points are scattered and there is no strong linear association, the data trend
does support that species with larger numbers of nesting pairs
1.(a) The experimental units are the semiconductor wafers. The response variable is film
thickness, which will be measured in angstroms. The two factors in the experiment are
temperature and pressure, which are both in three levels: 1=low, 2=middle and 3=
Stat151MidtermVersion111
LASTNAME:_FIRSTNAME:
_
STUDENTID:_STAT151SECTION:
_
Instructions:
.
1) Personal items must be placed aside prior to the start of the exam.
.
2) All portable electronic devices must be turned off, including cell
phones, pagers, etc
SOC 210 - Problem Set 1
Healy and Prus Chs. 1-2 and Math Review
Due Date:
Week 3 Monday (Jan. 23rd) during your assigned lab
If not turned in during lab, this assignment must be submitted before 5:00pm on Monday, January
23, 2017 to 6-23 Tory
Directions:
University of Alberta
ECON 102
Midterm 1 exam
Instructor: Mesbah Sharaf
Department of Economics
Fall 2014-2015
Allowed time: 50 minutes
Please copy your answer in the multiple choice sheet provided
The exam is 50 multiple choice
You are allowed to use a c
SOC 210 - Practice Problem Set 2
Hypothesis Testing Healy and Prus Chs. 5-10
Directions:
Answer the following questions. You must show any and all work behind your calculations. When
calculations require rounding, round to two or four places past the deci
University of Alberta
ECON 102
Version 1
Midterm 1 exam
Instructor: Mesbah Sharaf
Department of Economics
Fall 2015
Allowed time: 50 minutes
Please copy your answer in the multiple choice sheet provided
The exam is 35 multiple choice
You are allowed to us
SOC 210 - Problem Set 3
Healy and Prus Ch. 5-6
50 points total
Due Date:
Week 8 Monday (February 27th) during your assigned lab
If not turned in during lab, this assignment must be submitted before 5:00pm on Monday,
February 27, 2017 to 6-23 Tory
Directio
SOC 210 - Problem Set 2
Healy and Prus Ch. 3
Due Date:
Week 4 Monday (January 30th) during your assigned lab
If not turned in during lab, this assignment must be submitted before 5:00pm on Monday,
January 30, 2017 to 6-23 Tory
Directions:
Answer the follo
SOC 210 - Practice Problem Set 1
Healy and Prus Chs. 1-4
Directions:
Answer the following questions. You must show any and all work behind your calculations. When
calculations require rounding, round to two or four places past the decimal, unless you are
SOLUTIONS TO ASSIGNMENT 4
Question 1
(a) The scatterplot of time to extinction and number of pairs is displayed below:
Plot of Time of extinction versus Number of pairs
size
60.00
L
S
50.00
time
40.00
30.00
20.00
10.00
0.00
0.00
2.00
4.00
6.00
8.00
10.00
SOLUTIONS TO ASSIGNMENT 2
Question 1
(a) Patients were recruited from cancer clinics and additional cases of healthy individuals were selected.
The cancer patients were classified into 3 groups depending on the stage of the disease benign,
primary and rec
ASSIGNMENT 5
TWO-WAY ANOVA
In this assignment, you will explore the relationship between three variables: gender, alcohol consumption, and
blood alcohol level. Specifically, you will examine the main effects and interaction effects of gender and
alcohol c
1. Since the objects are randomly assigned to two different
groups(the treatment group and the control group), so it is an
randomized experiment. Therefore, we can draw a causal
inference
2.a) The mean for the treatment group is 129.8611 and the mean
for
Lab # 3
Stat 235
LAB Section EL17
SHAIKH Kehful
1.
a) The probability that there is zero flaws in the sample with a lambda value of 0.25 is P(X=0) = 0.7788.
b) The fraction of defective tiles that will need to be scrapped is P(X>1) = 1 [P(X=0)+P(x=1)] =
0
Stats 235 Lab 3
1
(a) Probability that there are no flaws in a randomly selected time:
P(X=0) = 0.7788
(b) Fraction of defective tiles to be scrapped:
P(X1) = 1- P(X<1) = 1- P(X=0) = 1-0.7788 = 0.2212
(c) P(X1) = P(X=0) + P(x=1) = 0.9735
(d) The distribut