Using the Equation Editor
Inserting an Equation
To insert an equation, do one of the following.
Word :
WordPerfect :
Insert / Object / Microsoft Equation 3.0
Insert / Equation
If you are using Word on your home computer, you may want to add the equation
e

H 524: PROBLEM SET 3 SOLUTIONS
NOTE: Since I photocopied some of the answers from the solution manual for the book,
this solution set contains answers to some problems that werent assigned.
Chapter 9
Exercise 2:
If we collect many, many random samples all

H 524: Problem Set 5 Solutions
Chapter 11
5. This study generated paired data. From each subject, we collect the pair (LDL cholesterol under corn
flakes, LDL cholesterol under oat bran). Let 1 denote the mean LDL cholesterol level in the population
of hyp

Readings from the textbook
Chapters 15 & 16
Problems to be turned in for grading
Chapter 15: 8 (hint: part c is asking you to use the methods from week 7)
(10 points)
P1=P2 :
a. H0 =
The population proportion of students who drove while drinking is
the sa

H 524: PROBLEM SET 2 SOLUTIONS
CHAPTER 6
Exercise 6.
We can compare two population proportions using the relative risk, odds ratio,
risk difference.
Exercise 19.
a. The probabilities of suffering from persistent respiratory symptoms by
socioeconomic statu

H 524: Problem Set 4 Solutions
Chapter 10
10a.
H 0 = mean WBC count among persons infected with E. canis is 7250/mm 3
Ha
= mean WBC count among persons infected with E. canis is < 7250/mm 3
Note: its fine if you wrote Ho: mean WBC count among persons infe

H 524: Problem Set 7 Solutions
Problem 1
A clinical trial designed to evaluate whether or not patients with coronary artery disease
respond to treatments heparin and enoxaparin. Estimate
RD = pH - pE
RR = pH / pE
OR = pH/(1- pH) / pE / (1-pE)
where pH den

H 524: PROBLEM SET 1 SOLUTIONS
CHAPTER 3
Exercise 6:
a)
Find the following numerical summary measures of the data:
i.
ii.
iii.
iv.
v.
vi.
mean: 25.91 month.
median: 24 month.
mode: 12 and 24 month.
range: 96-0.1 = 95.9 months.
interquartile range: (39 2.2

H 524: Problem Set 6 Solutions
ANOVA Exercise
Compare the mean changes in fat-free mass for women after 16 weeks on an aerobics, modern dance, or
control program.
a) Boxplots
-2
Change in Fat-Free Mass
0
2
4
6
Stata command: graph box diff, over(group) yt

Chapter 17, Problem 5,
Principles of Biostatistics
Pagano& Gauvreau
Problems to be turned in for grading
5
triglyceride
10
15
Chapter 17: Problem 5 (10 points)
a. Construct a two-way scatter plot for these data:
In Stata, using twoway (scatter triglycerid