Stat/For/Hort 572
April 22, 2004
Take-Home Midterm Examination
This exam is due at the beginning of lecture 11:00 am on Thursday April 29. For any change in
due date (to be granted only under compelling circumstances), arrangements must be made in advanc

Stat/For/Hort 572
Larget
March 11, 2008
Review 2
During this semester we have studied several types of models:
1. simple and multiple regression with quantitative and catergorical exaplanatory variables;
2. logistic regression;
3. Poisson regression;
You

Stat/For/Hort 572 Midterm II, Spring 2005 Brief Solutions for Problem 1
First we assess the relationship between toxicity and the treatment (i.e., chemotherapy and dose rate). We
create a new variable dcint to represent the interaction between dose and ch

Stat/For/Hort 572
Zhu
March 7, 2006
Midterm I
NAME:
Instructions:
1. For hypothesis testing, follow the standard procedures. That is, state the H0 and the HA , select and
compute the test statistic, state the null distribution, report the p-value, draw a

Stat/For/Hort 572 Midterm I, Spring 2004 Solutions
1.
2.
(a) From the R predict output, ypred = 59.94 and s.e.(yest ) = 1.331315. Thus the condence interval is:
ypred t6,0.025 s.e.(yest ) = 59.94 2.447 1.331315 = (56.68, 63.20).
(b) From the R output anov

Stat/For/Hort 572
Zhu
March 19, 2002
Midterm I
NAME:
Instructions:
1. For hypothesis testing, the signicant level is set at = 0.05.
2. This exam is open book. You may use textbooks, notebooks, and a calculator.
3. Do all your work in the spaces provided.

Stat/For/Hort 572
Larget
April 13, 2007
Midterm 2
Instructions:
1. The examination is due at 11:00 am at the beginning of lecture on Thursday, April 19.
2. For your solution for each problem, please use only one side of each piece of paper. You may write

Stat/For/Hort 572
Larget
May 12, 2008
Statistics 572 Semester Review
Final Exam Information: The nal exam is Friday, May 16, 10:05 - 12:05, in Social Science 6104. The
format will be 8 True/False and explains questions (3 pts. each/ 24 pts. total), and th

Stat/F&W/Hort 572
Hwang/Zhao
May 2, 2009
DISCUSSION 10
1. An experiment of brewing of beer was done in Milwaukee. We have two factors pressure and temperature.
Both of factors have two levels, which are recorded as 1(low) and +1(high). The data is in beer

Stat/For/Hort 572
Zhu
March 15, 2005
Midterm I
NAME:
Instructions:
1. For hypothesis testing, follow the standard procedures. That is, state the H0 and the HA , select and
compute the test statistic, state the null distribution, report the p-value, draw a

Stat/F&W/Hort 572
Hwang/Zhao
February 2, 2009
DISCUSSION 2
Lets go back to the case of acorn size. Data available from http:/lib.stat.cmu.edu/DASL/Datafiles/
Acorns.html. Fifty species of oak trees grow in the United States. Twenty eight species of oak fr