500key 1/30/07 (For doc. version use http://courses.wcupa.edu/rbove/eco500/500key.doc.)
Welcome to the Eco500 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 2-4 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.
My new standing offer: Work to improve the course, if it is used, will be rewarded by adding extra credit points to grades on graded homework. This includes, but is not limited to: 1) The first person to notice an error on any posted document except, maybe, exams; 2) help to improve course graphics and 3) valuable ideas for new documents or problems.
Notices ---- Office hours for current weeks are several pages below.
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. You can enter this website through Blackboard.
In addition to the prerequisites you are expected to be able toexpress yourself in writing. All e-mails to the instructor should be ingrammatically correct but not terribly formal English with the spellingchecked! Note the following rules!
1. Verbs HAS to agree with their subjects.
2. Prepositions are not words to end sentences with.
3. And don't start a sentence with a conjunction.
4. It is wrong to ever split an infinitive.
5. Avoid clichés like the plague. (They're old hat.)
6. Be more or less specific.
7. Parenthetical remarks (however relevant) are (usually) unnecessary.
8. Also too, never, ever use repetitive redundancies.
9. No sentence fragments.
10. Don't use no double negatives.
11. Proofread carefully to see if you any words out or mispeld something.
12. Eschew obfuscation.
13. i get very angry if you Don’t capitalize correctly.
14. Pronouns should be put in the correct case, and the passive voice should be avoided by you and I.
15. I were very happy if you would have learned the difference between the subjunctive and the conditional.
Do you know the difference between ‘you and I’ and ‘you and me,’ ‘fortuitous’ and ‘fortunate,’ ‘enormousness’ and ‘enormity,’ ‘uninterested and disinterested,’ ‘lay’ and ‘lie,’ ‘reticent’ and ‘reluctant?’ Most students and too many faculty and newspaper editors don’t.
February Notices
Feb 1 – The material that I should have handed out on Tuesday can be accessed from 252RegressionCover.
References copied from below.
ECO 251 OUTLINE and Lecture Summary
ECO 251 OUTLINE for use by instructor in class
TERMS NOT EXPLAINED ELSEWHERE.
ECO 251 PROBLEM SOLUTIONS
ECO 251 PROGRAMS
ECO 251 OLD EXAMS
ACADEMIC DISHONESTY STATEMENT
SYLLABUS
ECO251 HOMEWORK ASSIGNMENTS
PROBLEMS THAT APPEAR IN ONLY THE 8TH OR 9TH EDITION
ECO 252 OUTLINE and Lecture Summary
ECO252 OUTLINE for use by instructor in class.
ECO252 HOMEWORK ASSIGNMENTS
ECO 252 PROBLEM SOLUTIONS
ECO 252 PROGRAMS
ECO 252 OLD EXAMS
SYLLABUS SUPPLEMENT EXCERPTS also see SYLLABUS SUPPLEMENT CONTENTS. This is most of the contents of Supplementary Materials & Tables for ECO 251 & 252, which is available from Dynamic Student Services, 20 Linden St. I strongly recommend that you buy these tables rather than copying these from the website, since the bound form is more convenient.
ECO 252 HOMEWORK ASSIGNMENTS
Eco 502 exam - One exam from a Graduate Statistics Course.
Grading Rubric
Macros from Minitab
February Notices
Feb 14 – The exam is rescheduled for next week. Please contact me if you wish to take it at another time.
From: Christ, Paul
Sent: Tue 2/13/2007 11:55 AM
To: Li, Huimin; Bove, Roger Even;
Subject: Tuesday Night MBA Classes
Amy, Paul and Roger:
MBA classes are cancelled tonight. It is MBA policy to make up classes if needed. You can do this next Tuesday. If you plan to make up please let me know ASAP.
Thanks,
Paul
January Notices
Jan 27 – A reminder was just sent me.
Roger, Amy, Paul and Kanan:
A reminder was sent to all faculty today advising there will be no classes Tuesday, January 30 and Wednesday, January 31.
THE MBA PROGRAM DOES NOT ADHERE TO THIS SCHEDULE
CLASSES WILL BE HELD ON TUESDAY, JANUARY 30 ANDWEDNESDAY,JANUARY 31.
Jan 26 – A revised SYLLABUS has been posted. All problem assignments for this part of the course are in ECO252 HOMEWORK ASSIGNMENTS.
Jan 24 – A new document, 252anovaex4, covers the 3-way ANOVA that I did in class. The Lilliefors problem that I did in class is Problem E3 in 252solnE3.
Jan 23 – 252ones, section 2c has been improved by the addition of some examples of problem statements and the accompanying hypotheses. I have office hours today.
Jan 22 - This page can now be entered through blackboard. Two sets of documents will be handed out in class tomorrow night. The second handout has three documents in it that have been revised since the copies were made. These are 252regr, 252mreg and 252corr. There are no errors in the documents to be handed out, but you may want to make copies of the revised documents because they are easier to follow. The first section of outline section D in 251descr1 needed corrections. These have been made and posted.
Jan 19 – A corrected version of 251distrex3 has been posted. The two corrections on the 4th and 6th pages of the document are double underlined. The last page now prints correctly.
Jan 18 – An edited version of the exam appears here. Office hours are below. Problem solutions have been moved to the ECO500 site. A solution to the last exam appears here.
Jan 17- Corrections to the exam appear below.
2. Assume that the income in an area is Normally distributed with a known population standard deviation of $2000. A random sample of 15 households yields a sample mean of $25000. Test the null hypothesis that the population mean is at least $26000. Use a test ratio. Find a p-value. (5)
4. a) Use a test ratio and the sample standard deviation you computed in problem 3 to test if the population standard deviation is 0.15 (3)
b) Confirm your results by creating a confidence interval for the variance. (1)
c) Repeat the test assuming that the sample size is 40. (2)
d) Confirm your results by creating a confidence interval for the variance. (1)
Jan 8 – Whoops! If anyone is still out there I should have given you more numbers in problem 3. (I should have said that average sales are $75000 units with a standard deviation of $30000.)
Jan 4 – I just had the following called to my attention. Please also note the material cited on Dec 14.
There is a fatal misprint in question 2. It should read
2. (Most of the following problems are due to Mansfield and Schmidt.) As you leave a restaurant the attendant gives you a randomly selected coat from the coatroom. If 10% of the coats are worth $200, 40% are worth $100 and 50% are worth $50, show that you have a valid distribution and compute the expected value and standard deviation of the value of the coat you receive. (5)
As far as the next question is concerned, everything that you need is on pp 62-63, ‘Functions of a single random variable,’ in the syllabus supplement. I went through this in class.
As corrections may be necessary, I will post the exam as http://courses.wcupa.edu/rbove/eco500/500x0711.doc .
Jan 2 – Over the break I received the following corrections from Rick Bliss. The second is especially important. All have been inserted into revised documents.
Doc 251solnF, page 5 third paragraph. F=2878, but when this value is inserted into the formula, it is 2898. The answer is calculated using this incorrect value. The correct answer is 156.063.
Doc 251solnG1, page 5. The first sentence in both Exercise 3.24 and Exercise 3.33 should read, "The Empirical rule states that about 67% will be within 1(one) standard deviation of the mean..."
251solnG3, top of page 2. Exercise 3.1bpart c)Pearson's Measure of Skewness. The standard deviation was calculatedas 2.915, but when it's inserted into Pearson's formula it is 2.015 with a measure of skewness of -1.489. Using the correct SD, the measure of skewnessis -1.029
Minitab information appears under Minitab Options at the end of this document.
Office Hours: (Call 610-436-2134 if you're not sure! But you are always better off e-mailing ) . I am often in during afternoons outside of these hours.)
Tuesday Jan 16 / Office Hours 3:30pm – 5pm.Wednesday Jan 17 / Office Hours Noon – 2pm
Thursday Jan 18 / Office Hours 3:30pm – 5pm
Friday Jan 19 / Office Hours Noon – 2pm
Monday Jan 22 / Office Hours Noon – 2pm
Tuesday Jan 23 / Office Hours 3pm – 5pm.
Wednesday Jan 24 / Office Hours Noon – 2pm
Thursday Jan 25 / Office Hours 3:30pm – 5pm
Friday Jan 26 / Office Hours Noon – 2pm
Monday Jan 29 / Office Hours Noon – 2pm
Tuesday Jan 30 / Office Hours 3:30pm – 5pm.
Wednesday Jan 31 / No Office Hours
Thursday Feb 1 / No Office Hours
Friday Feb 2 / Office Hours Noon – 2pm
Monday Feb 5 / Office Hours Noon – 2pm
Tuesday Feb 6 / Office Hours 3:30pm – 5pm.
Wednesday Feb 7 / Office Hours Noon – 2pm
Thursday Feb 8 / Office Hours 3:30pm – 5pm.
Friday Feb 9 / Office Hours Noon – 2pm
Monday Feb 12 / Office Hours Noon – 2pm
Tuesday Feb 13 / No Office Hours
Wednesday Feb 14 / Office Hours Noon – 2pm
Thursday Feb 15 / No Office Hours
Friday Feb 16 / Office Hours Noon – 2pm
Monday Feb 19 / Office Hours Noon – 2pm
Tuesday Feb 20 / Office Hours 5pm – 6pm.
Wednesday Feb 21 / Office Hours Noon – 2pm
Thursday Feb 22 / Office Hours 3:30pm – 5pm.
Friday Feb 23 / Office Hours Noon – 2pm
Monday Feb 26 / Office Hours Noon – 2pm
Tuesday Feb 27 / Office Hours 5pm – 6pm.
Wednesday Feb 28 / Office Hours Noon – 2pm
Thursday Mar 1 / No Office Hours
Friday Mar 2 / Office Hours Noon – 2pm
December Notices
Dec 14 – There are two documents that may help you with summarizing probability. 251probex5 is a review of probability, especially Bayes’ rule through one extended problem. On many take-home exams as well as in the problem set, a version of the Great Veeblefetzer problem has appeared. I just put together 251veeble, which is a worksheet to guide you through the essentials.
Dr. Christ sent me this a while ago. It should clear up any confusion about our schedule.
To MBA Professors - Winter 2007 Term:
The MBA Winter startsin about four weeks (week after Thanksgiving) and at this time let me take a few minutes to discussseveral issues related to the program.
First, if you have not submitted your book order, please do so ASAP.You can send this to Amber Griffith at SSI. Here email is
Second, the MBA program website (www.wcumba.org) allows for posting of course information before the course starts. For professors there are several features that will be of interest including: 1) links to course textbook info at the WCU bookstore, 2) the ability for professors to make available links to other course materials such as a professor's own course webpage, and 3) the ability to post assignments for the first night of the term. If you have other materials or first night assignments or if you have a link to online work, such as through Blackboard, please forward this information to me.
Third, please be advised of theGraduate program grading policy. Grades at the "D" level are NOT acceptable. Appropriate letter grades are:
A, A-, B+, B, B-, C+, C, C-, F and IP (represents "in progress"grade - we do not have the NP grade).
Also, you should be aware there is NO set numeric grade that associates with a letter grade (this differs from grading for the WCU Undergrad program). As professor you can decide how a numeric grade matches to your letter grades. For example, a letter grade of "A" does not have to be a numeric grade of 92 or better the way it is for Undergrad courses. However, it is strongly recommended that if you do inform students of numeric grades then you should show in your syllabus how these translate into letter grades (i.e., what numeric grade is needed to get a certain letter grade).
Finally, please note the MBA Program runs on a different schedule than the rest of the University. Our Winter term starts the week of November 27 and runs through February 15 and runs for 10 weeks meeting one night per week.There are breaks for the upcoming holidays as follows:
Monday classes do not meet 12/25 and 1/1
Tuesday classes do not meet 12/19 and 12/26
Wednesdayclasses do not meet 12/20 and 12/27
Thursdayclasses do not meet 12/21 and 12/28 *
(*note there is an exception for FIN644 which will meet on 12/21 but not 1/4)
If you have any questions please feel free to contact me.
Have a great term,
Paul
***************
Paul Christ, Ph.D.
Associate Professor - Marketing
Director - MBA Programs
West Chester University
West Chester, PA 19383
610-425-5000 x3232