Exam 3
Jingda xu
Jxu38
Introduction
This analyze is to analysis how Haemophilus influenza which also been called H.influenza cause
Otitis media. Otitis media is a medical term for middle ear infection, it is very common occur at any age
in childhood. An i
lilllljijl cfw_if boys among the rst 7 (,xliildmiiii \9215 1'<.L(>1(l(3l (iii a tizri'lllpll ml 1,.5513-1, Vii-1:
lailgt" i'eliiiilies in Sweden. and the results, we Lalmlziial below.
Number of boy: U l _, :5 1: ,3 (j: 7
Frequency 0 57 206 2363 '3
HW3 Solution
STAT426 Spring14
1.(4.7):
a.
log() = 1.6094 + 0.5878x
= 0.5878 > 0, which indicates that the average number of imperfection is higher for
treatment B than for A.
log(A ) =
log(B ) = + 1 = +
log(B ) log(A ) =
B
e =
A
b.
Do Wald test or lik
Exam 1
Stat 426
Spring 2014
(Use front and back of each sheet if you need to, but show sufficient work to justify your
answers)
1. The relationship between coffee drinking and myocardial infarction was studied in
young women, aged 30-49. This retrospectiv
Exam 1
Stat 426
Spring 2015
1. The number of boys among the first 7 children was recorded on a sample of 1,334 very
large families in Sweden, and the results are tabulatd below.
Number of boys 0 1
Frequency
6 57
2
3
206 362
4
365
5
256
6
69
7
13
a. Find t