STA 527/427
Graded Homework 1
Due: 9/7/2012
Find, copy, and submit a research article from a scientific journal that uses data to answer
questions and is 6 pages or less (slightly larger articles okay
STA 527/427
Graded Homework 5 - Solutions
mean IFN readings.
1. We have 100 observations from a continuous distribution where
The standard deviation of IFN readings is unknown.
2.
Descriptives
Statist
STA 527/427
Graded Homework 5
Due: 11/2/2012
Directions: Some of the problems below require the use of SPSS. Be sure to include only
relevant output from SPSS and clearly label your answers. For quest
STA 527/427
Graded Homework 4
Question one
Suppose that
is a random variable with the following distribution
0
1
2
3
Compute
and
0.512
0.384
0.096
0.008
.
1(0.384) 2(0.096) 3(0.008) 0.6
2 (0 0.6) 2
STA 527/427
Graded Homework 4
Due: 10/05/2012
Question one
Suppose that
is a random variable with the following distribution
0
1
2
3
Compute
and
.
0.512
0.384
0.096
0.008
Question Two
A pharmaceutical
STA 527/427
Graded Homework 3 - solutions
Question one
Suppose that P( A) 0.3 , P( B) 0.4 , and P( A B ) 0.7 .
Step one:
P( A B ) P( A) P ( B ) P( A B )
0.7 0.3 0.6 P( A B )
0.7 0.9 P( A B )
P( A B )
STA 527/427
Question one
Suppose that P( A) 0.3 , P( B) 0.4 , and P( A B ) 0.7 .
Compute the following probabilities:
a) P( A)
b) P( A B)
c) P( A B )
d) P( B | A)
e) P( A | B)
Graded Homework 3
Due: 9
STA 527/427
Graded Homework 2
Due: 9/14/2012
Directions: Some of the problems below require the use of SPSS. Be sure to include only
relevant output from SPSS and clearly label your answers. Disorgani
STA 527/427
Graded Homework 6
Due: 11/30/2012
Suppose investigators wish to study the mean of a continuous outcome (Y). A total of 11
subjects were randomly assigned to each of four treatment groups.