Sampling of Populations
What is Sampling?
Process of selecting a number of study
units from a defined study population.
Act of studying or examining only a
segment of population to represent the
whole.
Questions considered in
sampling
What is the group
BIO180 LABORATORY
TAKE HOME EXAM 2012-2013 (50 points)
General Directions: Answer by pair or groups of three. Show your solutions if applicable. Save in pdf format and email to
atasantiago@post.upm.edu.ph. If you intend to simply upload your answers in yo
One-Way ANOVA Results and Input: (not sure kung pareho lang ang one way anova at t-test)
Ganito ko inenter yung data
Double check ninyo na lang
And, yung weight and height pala hindi ko macompute kasi, yung sample means, hindi nasama
sa excel file na nak
BIOLOGY 180
Practice Problems for Exam 1
2nd Semester, 2009-2010
Instructions:
Write all your answers, with complete solutions, on a sheet of yellow pad paper.
Observe legible penmanship. Enclose final numerical answers in a box. Where possible,
give your
Gelera, Mariel Grace M.
Magabo, Mark Lester V.
BIO 180 Take Home Exam
1. 7! = 7 x 6 x 5 x 4 x 3 x 2 x 1 = 5040
2. P(L) =
=
= 1.53 x 10-6
3. -0.3, ,
Rationale : Probability values should always be between 0 and 1, therefore no negative
numbers.
4.
5. N=231
T-test for comparison of two means
Hypothesis testing using t-test was used to determine the difference between the means of blood lead
concentration, creatinine, and fasting glucose of male and female and the means of the blood lead concentration,
creati
Gelera, Mariel Grace M.
Magabo, Mark Lester V.
BIO 180 Take Home Exam
1. 7! = 7 x 6 x 5 x 4 x 3 x 2 x 1 = 5040
2. P(L) =
=
= 1.53 x 10-6
3. -0.3, ,
Rationale : Probability values should always be between 0 and 1, therefore no negative
numbers.
4.
5. N=231
Laws of Probability
Probability
Measure of how likely an event will occur.
Random events
Chance
A probability of 0, or 0%, means the event
has no chance of happening.
A probability of 1/2 , or 50%, means the
event is just as likely to happen as not t
Hypothesis testing
Hypothesis
Hypothesis is a
belief concerning
a parameter
Parameter may
be population
mean,
proportion,
variance,
standard
deviation.
I believe that mean weight of
cereal packages is 300 grams!
Hypotheses
Null hypothesis is prevalent
SCORE= 50/50
GOOD.
Gelera, Mariel Grace M.
Magabo, Mark Lester V.
BIO 180 Take Home Exam
1. 7! = 7 x 6 x 5 x 4 x 3 x 2 x 1 = 5040
2. P(L) =
#$
=
" " "
= 1.53 x 10-6
%
3. -0.3, $,
Rationale : Probability values should always be between 0 and 1, therefore n
Nature of Biostatistics
Biostatistics
Application of statistical
methods to the life sciences like
biology, medicine and public
health.
Branches of Statistics
Descriptive Statistics
Refers to the different methods applied to
summarize and present data
T-test for Comparison
between Two Means
The Molesters
Means to be compared
1.
2.
Blood lead concentration, Creatinine, and
fasting glucose in male and female
Blood lead concentration, Creatinine, and
fasting glucose in single and married
Male vs. Female
A
Gelera, Mariel Grace M.
Magabo, Mark Lester V.
BIO 180 Take Home Exam
1. 7! = 7 x 6 x 5 x 4 x 3 x 2 x 1 = 5040
2. P(L) =
=
= 1.53 x 10-6
3. -0.3, ,
Rationale : Probability values should always be between 0 and 1, therefore no negative
numbers.
4.
5. N=231
Castro, Johan Daryll L.
Viloria, Carlo Eric S.
WBC
1. Q: In attempting to decipher an intercepted message from Libya, a code expert decides to list all
different arrangements of the word CDBTPRS. How many different arrangements are there?
(5 points)
A: 7!
Table _. Measures of Central Tendencies for the Variables Blood Lead Concentration,
Creatinine Level and Fasting Glucose Level of the Sample Subjects from Barangay Agham
BLC (mg/L)
CREA (mg/dl)
FG (mg/dl)
Mean
15.08
6.996
122.6
Median
13.6
7
125
Mode
13.6
POPULATION AND SAMPLE DESCRIPTIONS
Barangay Agham is a settlement area where the researchers worked on. It is a place
wherein the lifestyles of the residents highly depend on the lake which is located at the center of
the area. It consists of three main s
Correlation Data
Linear regression was used in order to determine the correlation between the study
variables. Strength of correlation was determined by the value of R square while direction and
magnitude of relationship was resolved by the regression equ
BIO 180 CASE STUDY 2012 -2013
The Cracklings : Cumlat, Catherine T.; De Guzman, Dyan Gabrelle H.; Espiritu, Ma.
Sharmaine D.; Magabo, Mark Lester V.
OBJECTIVES
The purpose of this is study is to provide explanation to the disease suffered by
the Barangay
ANOVA for BMI
Analysis of Variance was performed to be able to know whether there are significant
differences between the means of the study variables present in different BMI groups. The BMI
groups are predefined to be Underweight (where BMI < 18.5 kg/m
UNIVERSITY OF THE PHILIPPINES MANILA
COLLEGE OF ARTS AND SCIENCES
DEPARTMENT OF BIOLOGY
BIOLOGY 180: GENERAL BIOSTATISTICS
SS 2012-2013
Course Description:
This course provides the basic concepts in probability, statistics and statistical analysis
for the