Touria Rguig
Tr7356
Dec14th, 2013
SSC 304 Fall 2013
Project 2 Format & Guidelines
I.
Introduction to the Problem
In this project, a friend is interested in buying a home in Albuquerque, and he wants our help
to analyze all the data he has found to help hi

SDS 304, Fall 2015, Quiz 3
15 Multiple choice items (2.67 points each)
1. Which symbol below represents the true value of the proportion of successes in a
population?
a. p
b. p0
c. q
^
p
d.
2. The sampling distribution is the distribution of the _ over mu

Review of z, chi, and t tests Asthma-related illnesses
The Healthy People initiative is a nationwide set of medical goals the government sets every 10 years. Among
their objectives they include reducing deaths, hospitalizations, and days of missed work du

Jessica Hartos
Project 2: Alabama
Page 1 of 2
PROJECT 2. Reporting Descriptive and Inferential Statistics for Categorical Variables and Quantitative Mental Health Days for BRFSS Dataset: Alabama
Results As shown in Table 1, the sample in Alabama was mostl

Chapter 15: Sampling Distribution Models
The Sampling Distribution Model for a Mean
1
y y
sy
Sampling distribution of a statistic (Ex.
zy
)
The probability distribution of values of a sample estimate
Sample 1
Population
with unknown
mean =
y y
sy
Mean =

Portfolio #2: Dependent T Test
Due: April 10 submitted as a stapled hard copy at the beginning of class
Length 2-3 pages
To complete this assignment you will compose a research question in your field that is of interest to
you and can be answered by using

SSC 304
Chapter 22
Comparing Counts
Comparing Two Proportions
Null Hypothesis is that the two group proportions are equal:
H0: p1 = p2 (or)
H0: p1 - p2 = 0
We used the Z-test to make a decision.
Test Statistic:
( p1 -
p2 ) - 0
z=
SE pooled ( p1 - p2 )
W

Name: Touria Rguig
Date: 03/27/2014
This worksheet will serve as a guide for discussion sections. You should attempt to
answer the questions BEFORE coming to discussion and turn in the completed sheets.
Your TA will guide you through the questions and hel

Touria Rguig
RHE 306-tr7356
March 8th, 2012
Research Summary 5: A Cartoon Analysis
The cartoon titled Unleash NCLB Dogs relate to my controversy of should the No
Child Left Behind continue to be implemented in schools. NCLB is implementing a punishment
an

Statistical Inference
Inference
Using a SAMPLE to
draw conclusions about
a POPULATION
Hypotheses
We build hypotheses about a
POPULATION, and test it using our
SAMPLE.
We know that samples will vary
SAMPLING VARIABILITY so we cant
come up with a definite

Name: Touria Rguig
Date: 03-20-2014
This worksheet will serve as a guide for discussion sections. You should attempt to answer the
questions BEFORE coming to discussion and turn in the completed sheets. Your TA will guide
you through the questions and hel

Name: Touria Rguig
1.
Date: 04/24/2014
How was Penicillin discovered? What is its mode of action?
Fleming noticed a Petri dish containing Staphylococcus plate culture he mistakenly left open, was
contaminated by blue-green mould, which formed a visible gr

Name:Touria Rguig
Date: 04/17/2014
This worksheet will serve as a guide for discussion sections. You should attempt to
answer the questions BEFORE coming to discussion and turn in the completed sheets.
Your TA will guide you through the questions and help

Touria Rguig
Tr7356
Oct 24th, 2013
Project Data: Breakfast Cereal
I. Introduction to the Problem
In this project, seventy available breakfast cereals are analyzed in terms of their name, calories
per serving, grams of fat, milligrams of sodium, grams of c

SSC 304
Chapter 21
Paired Samples and Blocks
Paired data
Data are paired when the observations are collected in
pairs or the observations in one group are naturally
related to observations in the other group.
Paired data arise in a number of ways.
Two

Name:Touria Rguig
Date: 02/06/14
This worksheet will serve as a guide for discussion sections. You should attempt to
answer the questions BEFORE coming to discussion and turn in the completed sheets.
Your TA will guide you through the questions and help f

Name:
01/30/2014
Touria Rguig
Date:
This worksheet will serve as a guide for discussion sections. You should attempt to answer the
questions BEFORE coming to discussion and turn in the completed sheets. Your TA will guide
you through the questions and hel

Name: Touria rguig
Date: 02/20/2014
This worksheet will serve as a guide for discussion sections. You should attempt to
answer the questions BEFORE coming to discussion and turn in the completed sheets.
Your TA will guide you through the questions and hel

Name: Touria Rguig
Date: 04-03-14
This worksheet will serve as a guide for discussion sections. You should attempt to answer the
questions BEFORE coming to discussion and turn in the completed sheets. Your TA will guide
you through the questions and help

Analysis of Variance
Are the Means of Several Groups Equal?
The ANOVA Table
SS
Treatment
(Between)
Error
(Within)
Total
df
MS
F-ratio
(yj-)2
k-1
SST/k-1
MST
MSE
(yij-yj)2
N-k SSE/N-k
(yij-)2
N-1
j=group
i=observation
Also
SSTotal = SST + SSE
S
i
d
e
1
4
T

Sample Surveys
To infer something about the population
draw a sample!
We want to use unbiased, random samples
that are representative of the population for
which we are drawing the inference.
Bias in Healthcare Examples
Selection Bias
(Sica, G MD, MPH, B

Chapter 20:
Comparing Groups
1
The Standard Deviation of a Difference
Its much more common to compare two groups than to test
whether a single proportion is equal to a given number.
Comparing two groups is very much like testing one group.
The standard er

Chapter 18: Inferences About Means
1
18.1: The Central Limit Theorem Again
2
The Central Limit Theorem
When a random sample is drawn from a population with mean m
and standard deviation s, the sampling distribution of the sample
average has:
Mean: m
Sta

Chapter 19:
More About Tests and Intervals
1
How Do We Choose The Null Hypothesis?
The null hypothesis typically means no change or no difference.
Identify the status quo or value that indicates that things are
the same.
This does not mean 0. H0: p = 0

Chapter 15: Sampling Distribution Models
1
Population vs. Sample
Cannot study because of constraints
Parameters (unknown)
Population
Mean:
Standard Deviation:
Proportion:
p
Extrapolate results back
to the population
Take a
representative
subset that
Samp

Chapter 16:
Confidence Intervals for Proportions
1
Standard Error for a Proportion
What is the Model for the sampling distribution?
Usually we do not know the population proportion p.
We cannot find the standard deviation of the sampling
distribution:
p

Chapter 16:
Confidence Intervals for Proportions
1
Standard Error for a Proportion
What is the Model for the sampling distribution?
Usually we do not know the population proportion p.
We cannot find the standard deviation of the sampling
distribution:
p