UNIT 6 HOMEWORK
Read the following abstract before answering the questions that follow:
Background: Recent research demonstrated that vitamin D, apart from calciumrelated actions, has
antiproliferative, prodifferentiative and immunomodulatory activities.
UNIT 5 HOMEWORK
Question 1:
I am calculating the mean, median, standard deviation, and standard error of the mean for several variables (age,
height, weight, income, blood pressure, etc.) from a sample of 246 patients. If I receive data for an additional
UNIT 4 HOMEWORK
For some problems, you will need a normal probability calculator or chart. Here are some links:
Graphical standard normal calculator/chart:
http:/www.mathsisfun.com/data/standardnormaldistributiontable.html
Simple standard normal calcul
UNIT 8 HOMEWORK
Question 1:
The following scatter plot shows the relationship between year of release and alcohol exposure time (in seconds) for
Grated animated feature films released in the U.S. between 1937 and 2000. The authors fit a linear regression
Homework 7 (Unit 7)
Question 1:
The following table comes from a twin study. Researchers compared previous chemical exposures between twins
who were discordant for Parkinsons disease (one twin had Parkinsons disease but the other did not). (Reproduced
wit
Statistics for Health Care
Unit 2:
Overview
Overview
Basic study designs; measures of
disease frequency and association
Teaser 1, Unit 2
2000 NEJM study on rofecoxib vs.
naproxen, Randomized Trial
Teaser 2, Unit 2
Results: Myocardial infarctions were less
Statistics for Health Care
Unit 1
Overview/Teasers
First rules of statistics
n
n
Use common sense!
Draw lots of pictures!
Whats wrong with this?
Study with sample size of 10 (N=10)
Results: Objective scoring by blinded
investigators indicated that the tre
Statistics in Healthcare
Unit 8:
Overview/Teasers
Overview
Regression I: Linear regression
Common statistics for various
types of outcome data
Outcome
Variable
Are the observations independent or
correlated?
Alternatives
(assumptions
violated)
independent
Unit 1 Homework  Question Set 1
A doctor examines a group of healthy adults (presenting to clinic for their annual physical exams) and records their
respiratory rates, shown in the following table.
Outcome
(RR in breaths Frequency
per minute)
11
10
12
9
(measure of central tendency)

(arithmetic mean)
(geometric mean)
(harmonic mean)
,
()
=
(mu)
1
N
(x1 + x2 + xN) =
1
N
(x1 + x2 + xn) =
1
n
N
xi
i=1
x=
(x bar)
1
n
n
xi
i=1
()
(median)

 (n+1)/2
Elementary Statistics, ISC118
Instructor:
Office:
Office Telephone
Email:
Web Address:
Book:
Office Hours:
Dr. Mehlman
305 Woodang Hall
[email protected]
math.newhaven.edu/mhm
Introduction to the Practice of Statistics , Eighth Edition
by David S. Moo
Statistics for Health Care
Unit 3:
Overview/Teasers
Overview
Introduction to probability and
conditional probability; Bayes Rule;
diagnostic testing
Teaser 1, Unit 3
A classic statistics problem: The Monty Hall
Problem
Teaser 1, Unit 3
You are on the Mont