252key 4/30/04
Welcome to the Eco252 Web Page
This is a web page in progress. The
page contains links to the course syllabus, course outline with homework
assignments, computer problems, and annotated outline. It will contain old
exams and problem solutions after they are discussed in class. For future use
bookmark this page.
My hard drive is regularly checked for
viruses. If you get a virus report, please give me the document number and I
will reboot it.
My Standing Offer:
If you submit a good exam problem to me, you might just find it on the exam.
The better thought out it is, the more likely it is to go on the exam with
minimal changes. However, since there are 24 Statistics exams, the numbers are
likely to be changed. A number of students have submitted questions in the past
and, I believe, gotten better grades because of it.
Notices 
You should always be sure that
you have a copy of the current outline pages to bring to class. You should know
how to access Blackboard.
http://courses.wcupa.edu/rbove/entering_blackboard_for_the_first_time.doc
In addition to the prerequisites you are expected to be
able to express yourself in writing. All emails to the instructor should
be in grammatically correct but not terribly formal English with the
spelling checked!
Apr 30 – The 3^{rd} exam
is graded and you can pick it up. A corrected solution to
the 3^{rd} exam is also now posted. The main correction is a long
note on an inexcusable error many of you made on the takehome. Some of you may
be skeptical that I could grade a customized problem without doing the
calculations, so I will be glad to run your version on a Minitab macro that I
wrote for that purpose if you wish and tome permits. A solution to the extra
credit section has been posted temporarily as 252solngr4041s.
Apr 28 – The third exam is posted
as follows: 252x0421
Third exam
Apr 22 – Don’t forget that there is a review of the first
part of the course
Apr 19 – I just posted Solution
to Graded Assignment 4. I wish someone
had reminded me that this wasn’t posted when I returned the assignment. I have
also posted all problems assigned for the semester (See PROBLEM
SOLUTIONS ). The 4th Computer problem is ready and will be part
of the final exam.
Apr 12 – There is an error in the Takehome exam. I left
out the second 10 in the example. You are supposed to provide the 7^{th}
number. a) should read:
a) Note that office 2, the ‘head’ office in the
This means that d) should read:
d) (Extra Credit) Now we find out that this was not a random
sample and that each row represents a separate job description. If this changes
your analysis
The page is numbered wrong too. It’s 252x0431.
Apr 7 – All the problems for Sections G, H and I are now
available in PROBLEM SOLUTIONS.
Apr 2 – A correction to Graded
Assignment 4 has been made and the
promised extra credit problem has been added to it. The exam solution (252y0421) will be posted under OLD EXAMS later today.
Apr 1 – The following sections have been added to the
outline for ANOVA – 252mvar
and 252 mvarex.
All problem solutions have been posted for
Section F in PROBLEM
SOLUTIONS.
Mar 31 – A serious error in Grass 4 has been pointed out
to me in the ranges for the ANOVAs. Please make sure that you got your copy
after
Mar 30  Graded Assignment
4 is now available and due one week for
Wednesday. Make sure that you have a version of Excel with enabled statistical
tools.
Mar 26 – The following sections constitute the remainder
of the course except for the review. 252regr
Mar 22 – The Solution to
Graded Assignment 3 is now available. The
URL for the data file for the takehome exam is http://courses.wcupa.edu/rbove/eco252/2x04211.MTP.
To compute means and variances use the let and sum
instructions. For example if the data I want is x in column 5
MTB > let c6 = c5*c5
MTB > sum c5
Sum of C5
Sum of C5 = 10.000
MTB > sum c6
Sum of C6
Sum of C6 = 30.000
MTB > print c5 c6
Data Display
Row C5
C6
1
1 1
2
2 4
3
3 9
4
4 16
Mar 19 – I will be in A002 (or in
my office if no one shows) from
Mar 17 – The next exam will be on
Wednesday
Mar. 4 – The exam solution (252y0411) has been posted under OLD EXAMS
Mar 1 – You should have copies of
252chisq
(revised 1 March 2004)
Feb 24 – Office hours extended to
Feb 23 – Three important words
were left out of question 4 on the takehome. They are underlined. 4. a. Assume that a travel agent claims that the
average number of clients coming into the office in an hour has a
Feb 22
 Solution to Graded
Assignment 2 is now available. Just a reminder that Wednesday’s
exam is open book
Feb 16 – You should have copies
of 252mean
, 252meanx1, 252meanx2, 252 meanx3, 252meanx4 and 252conf (252conf is in syllabus supplement) to bring to class. The Solution
to Graded Assignment 1 is now available.
The takehome exam will be distributed on Friday. Problems in section C are now
available in PROBLEM
SOLUTIONS.
Feb 13  pp. 1718 252form has gone through yet another revision. Only the second
page was changed.
Feb 12  All problems for section B are now available
in PROBLEM
SOLUTIONS.
Feb 11  The second graded
assignment (Graded Assignment 2) is now available and will be due on Feb 18.
Feb 10
– To open commands on Minitab place your cursor in the session window. Then use
the ‘editor’ pulldown menu and click on ‘enable commands.’ The first half of
the problem solutions for section B are available in PROBLEM
SOLUTIONS. If you want to
begin to understand hypothesis testing and pvalues
Feb 5
– All problems for section A are now available in PROBLEM
SOLUTIONS .
Feb 2
– You need the following documents for the next two sections of the course. 252ones, 252onesx1 , 252onesx2, 252onesex, 252conf (252conf is in syllabus supplement) and 252power.
Jan 30 – The first graded
assignment (Graded Assignment 1) is now available and will be due on Feb 9.
Jan 29 – If you have the syllabus
supplement the following pages should be replaced:
pp. 1718 252form
pg. 22 252Wilcoxontable
pp. 4950 ttable1
pp. 5253 251form
pg. 66 251var2 (Only one page)
All but the first of these are
currently available from me.
Jan 28 – Two sets of solutions
for problems from section A have been posted. Go to PROBLEM
SOLUTIONS. If you have the 4^{th}
edition of Downing and Clark, get new versions of the syllabus (252syll) and the homework assignments (252hwk).
Jan 27 – From the textbook
manager.
I assure you they are
here. Please tell your students to see our staff or myself if they are having
trouble finding them. I will make sure that the books are well stocked and
visible.
Reggie Riddick
Textbook MGR
Student Services Bookstore
610 4362242
rriddick@wcupa.edu
Original Message
From: Bove, Roger Even
Sent:
To: Riddick,
Reginald
Subject: RE: Texts for ECO 250/251
I have some students who still need the package and
claim that it is no longer available.
.
Original Message
From: Riddick, Reginald
Sent:
To: Benzing, Cynthia
Subject: RE: Texts for ECO 250/251
Dr.Benzing,
All of the components
have arrived for the Berenson package. We have put them together and complete
packages are now available. Students that purchased incomplete packages
may now pick up any of the missing components free of charge. Thanks. for your
patience through all of this..
Jan 20 – From the tutoring
center:
Dear Faculty
Attached is
the list of tutors who will be working with the Learning Assistance and
Resource Center (LARC) this Spring semester. Spring
2004 LARC staff
Please note
that tutoring began on Tuesday
Feel
free to contact me if you have any questions/concerns.
Idna
M. Corbett
Director
6104361062
http://www.wcupa.edu/_academics/cae.tut/
Jan 13 – To rent Minitab if you
want it on your own computer go to http://www.minitab.com/education/semesterrental/default.aspx
. Final exams from last term are available from OLD EXAMS below.
Jan 12 – You should come to class
with the current outline – lecture summary pages 252onea
Office Hours: (Call 6104362134 if you're not sure! But
you are always better off emailing rbove@wcupa.edu)
. I am often in during afternoons outside of these hours.)




Monday April 19 


Tuesday April 20 


Wednesday April
21 


Thursday April
22 


Friday April 23 





Monday April 26 


Tuesday April 27 


Wednesday April
28 


Thursday April
29 


Friday April 30 





Monday May 3 


Tuesday May 4 


Wednesday May 5 


Thursday May 6 


Friday May 7 


Saturday May 8 
8:00am
Commencement 




Monday May 10 


Tuesday May 11 

Continued on next page
SYLLABUS
252syll For homework assignments
COURSE OUTLINE WITH HOMEWORK ASSIGNMENTS
252hwk contains a course outline and homework assignments.
Partial solution
to 2000 second graded assignment.
252cprb is the first 3 computer problems. Bring a copy of this document to the computer room or get one
off the website as soon as you arrive the computer sessions. 4th Computer problem
Graded Assignments and Solutions will be
accessible below.
*Hint: You can check your
answer to Graded Assignment 1 by putting the data in Column 1 in Minitab and
using the following instructions to print out standard deviations, standard
errors and confidence intervals.
tinterval 90.0 C1 
This is the instruction for a 90% interval
using t. 
zinterval 92.0 100 C1 
This is the instruction for a 92% interval
using z and a population standard deviation of 100. 
zinterval 99.9 100 C1 
This is the instruction for a 99.9%
interval using z and a population standard deviation of 100. 
OUTLINE
– Lecture notes.
PROGRAMS
These will be made available
by request.
252prog 

252chisq 
Does
chisquare homework 
252sols 
Does
simple regression homework 
Behrenson Text
CDROMs
http://courses.wcupa.edu/rbove/Berenson/CDROM%20Topics
http://courses.wcupa.edu/rbove/Berenson/Data%20Files8th/
http://courses.wcupa.edu/rbove/Berenson/Data_Files9th/
Continued on next page.
ADDITIONAL RESOURCES: Dr. Daniel Mohan has kindly
provided a list of websites related to statistics. In particular a copy of
Minitab can be rented from the Minitab website. Note: A new window will be
popped up to display the linked pages. You will want to close this window when
you are done looking at the selected site.
SPSS Home Page http://www.spss.com/
Minitab Home Page http://www.minitab.com/
Texas Instruments Calculators
http://www.ti.com/calc/
SAS Home Page http://sas.com/
Frontline Systems http://frontsys.com/
LINDO Systems http://www.lindo.com/
Stata Corporation http://www.stata.com/
Continued on next page.
URL list for this document.
Because some people have had
trouble using the links in this document. They are listed here.
252hwkadd http://courses.wcupa.edu/rbove/eco252/252hwkadd.doc
ttable1 http://courses.wcupa.edu/rbove/eco252/ttable1.doc
252syll http://courses.wcupa.edu/rbove/eco252/252syll.doc
252hwk http://courses.wcupa.edu/rbove/eco252/252hwk.doc
Partial solution http://courses.wcupa.edu/rbove/eco252/252solngr201.doc
252cprb http://courses.wcupa.edu/rbove/eco252/252cprb.doc
OUTLINE http://courses.wcupa.edu/rbove/eco252/252outline.htm
Go here for outline
links.
PROBLEM
SOLUTIONS http://courses.wcupa.edu/rbove/eco252/252solnkey.htm
Go here for problem
links.
OLD EXAMS http://courses.wcupa.edu/rbove/eco252/252examkey.htm
Go here for exam
links.
http://courses.wcupa.edu/rbove/eco252/252suppkey.htm
Go here for syllabus
supplement links.
CURRICULUM
VITAE http://courses.wcupa.edu/rbove/bovecv.doc
Fall 2003
LARC staff http://courses.wcupa.edu/rbove/Fall
2003 LARC staff.htm