MATH 171 - Section 3 - Statistical Decision Making

Class Syllabus - Fall 2008

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Course Description:   Statistical Decision Making is an elementary statistics course designed to show the student how statistics is used in problem solving and decision making. Topics may include graphical representations of data; measures of central tendency and variability; elementary concepts in data collection and design of experiments; elementary probability concepts; distributions including the binomial and normal distributions; correlation and regression; and confidence intervals and hypothesis testing for means, proportions and differences of means and proportions. Special emphasis is placed upon the understanding of concepts and the proper use of statistics in real life situations. This course is a Longwood University General Education course and counts as 3 semester credits.   In order to increase the likelihood of success in this course it is recommended that the student attend class without fail, religiously work the homework, read the textbook, focus on understanding the concepts (not just the rote computations), and seek help from the professor and other sources (tutoring, library, textbook CD and/or website, etc.) when needed. 

Learning Objectives This course will give students a working knowledge of the ideas and tools of practical statistics.  Students will learn to:

  • present and interpret data graphically (using histograms, scatterplots, stemplots, and boxplots) including identifying outlier data
  • compute and interpret measures of center, spread and correlation
  • identify response and explanatory variables and find, use and interpret the least squares linear regression line of a response variable on an explanatory variable
  • apply basic concepts of probability to find probabilities using the normal distribution
  • explain and use the Central Limit Theorem in relation to the sampling distribution of the sample mean
  • use the basic tools of statistical inference including confidence intervals and tests of hypotheses for populations means (z and t procedures) and population proportions.

Prerequisites:  Since this is a general education course, there are no prerequisites for the course.

Professor:  Dr. M. Leigh Lunsford.  For Dr. Lunsford's office location, phone number, email address, schedule (including office hours), and other general information, go to her homepage:  http://www.mathspace.com/Lunsford/

Meeting Times and Locations:   MWF 11:00-11:50 am, Ruffner 350

Course Textbook:   The Basic Practice of Statistics, Fourth Edition, by David S. Moore.  Your book for this class should have come bundled with an Activation Code for the Stats Portal.

Stats Portal:  Stats Portal is a web site containing a complete eBook that supports highlighting and note taking, study resources, and your assignments. We will be using the Portal for assigned coursework, so you are required to purchase access to it.  You may do this by purchasing a package containing the print text and access code from the bookstore, or you can purchase access to the Portal directly from the publisher at www.portals.bfwpub.com (a preview is available at this site as well).  Please be sure to see the Stats Portal Activation Directions before trying to access the Stats Portal.

Note that Stats Portal includes the complete eBook so it is not required that you purchase a print textbook as well.  The purchase of the print book is optional.  Stats Portal alone sells for approximately half the price of the print text.  The bookstore is, I believe, also selling packages of the print book and Portal access at a significant discount, so make sure you check all of your options before deciding what to purchase.

Required Technology/Computer Configurations: 

  • A TI-84 or TI-84 plus graphing calculator is required for this course.  If you do not use one of these then you will be responsible for knowing how to use your particular calculator. 

  • You will need to have Microsoft Word installed on your computer in order to complete your Final Project.

  • Make sure your computer is configured to run the statistical applets on the Stats Portal.

Determination of Course Grade:

40% - Two In-Class Exams (20% Each)

15% - On-line Work (may include homework, pre tests, post tests, etc.)

10% - In-Class Quizzes

10% - Hand-In Final Project
25% - Comprehensive Final Exam

Grades will be assigned on a ten point scale (90's A; 80's B; 70's C; 60's D; 50's and below F).

Honor System:  I expect you to conform to the Longwood University Honor System as contained in the Student Handbook.  All material handed in to me, including on-line work, falls under the honor code.

On-Line Work:   On-line work will be completed via the Stats Portal.  This work may consist of homework problems from your textbook, chapter pre-tests, chapter post-tests, and chapter self-quizzes.  You will have a time window in which to do your on-line work.  However, once I have covered a chapter the on-line homework for that chapter will usually be due before the next class period.  Please check the Stats Portal everyday for your on-line assignments. 

In-Class Quizzes:   Approximately every two weeks a short (15 to 20 minute) quiz will be given in class.  Occasionally an assignment to be completed outside of class will count as a quiz (such as Easy Quiz 1 and an occasional hand in assignment).  These quizzes will be based on your homework assignments and our class discussions.  I will try to give at least one class period notice for an in class quiz (please see the Stats Portal page for the latest information on quiz dates).  Once an in-class quiz has been graded and returned to the students, there will be no make-ups for that quiz, period.  All quizzes must be pledged.  I will drop your lowest quiz grade when computing your final homework grade. 

Make-up On-Line Work and In-Class Quizzes:  Because I will be dropping your lowest grade for computation of your In-Class Quizze average and you have plenty of time to complete your On-Line Work, there will not be any make-up in-class quizzes or make-up on-line work.  If you have a legitimate University sponsored event in which you must participate (such as a sporting event) scheduled on the same day as an In-Class quiz, then please see me about taking the quiz early.  Once a quiz has been given in class, you cannot take it.  Also, if a hand-in assignment is due on a day when you will not be able to come to class, then please make sure you hand in your assignment to me before the class meeting.  

In-Class Exams:  A minimum of a one week notice will be given for exam dates.  Please see the class schedule below for the tentative exam dates (for more detailed information about test dates see the Assignments page or the Calendar in Stats Portal).  Except in the case of an emergency, a make-up exam must be scheduled before the scheduled exam date.  If the exam has already been given and you have not previously scheduled a make-up, then you will receive a zero on that exam. 

Final Project:  You will have a hand-in final project that you will be working on during the course of the semester.  I will give more information about the final project after the drop/add day.

Final Exam:  The final exam for this course will be comprehensive.  You cannot miss the final.  Failure to take the final exam will automatically result in an F grade for the course.   Please see me as soon as possible if you have a conflict with the final exam date.

Final Exam Dates:    MATH171-03 - MWF 11:00-11:50 p.m. final exam date is Thursday, December 11,  8:00-10:30 a.m. You can find the scheduled final exam dates for all your classes at this link.  If you have a conflict with the final exam date and need to reschedule, please see me as soon as possible.

Extra Credit:  Extra Credit will NOT be given - period.

Attendance & Excused Absences:   You are expected to attend every class.  If you miss classes it will most likely be reflected in your grades (i.e. you will perform poorly).  The following college attendance policy will be followed per the Class Attendance section of the Academic Regulations chapter of the Longwood University Undergraduate Catalog:  Missing 10% of class meetings may result in a lowering of one letter grade.   Missing 25% of class meetings for any reason will result in an automatic “F” for the course.  Absences are excused only for illness, college sponsored activities, and recognizable emergencies.  You must have the proper documentation for an excused absence.  Student Health Services can provide documentation only for students hospitalized locally or absent at the direction of Student Health Services personnel You must also assume full responsibility for all material covered during your absence, including scheduling any early in-class quizzes or make-up exams.  A grade of "0" will be assigned for all work missed due to unexcused absences.

Resources for Students Learning Statistics:  

  • Me!  I want you to consider me to be your number one resource!  In addition to seeing me during my office hours, you are welcome to call me or send me email if you have questions about your homework.  If you are unable to see me during my office hours please make an appointment with me! 
  • The Stats Portal contains many resources to go with the text including a TI Graphing Calculator Manual, a Study Guide, and an eBook.  I will also be posting the slides I use in class under the Resources tab on the Stats Portal.  If you print these slides, please try to print at least six to a page to save paper and ink.
  • There is a link above to a page that contains Sample Quizzes and Tests given in previous MATH171 classes.  These are in pdf format. 
  • Longwood's Learning Center:  The Learning Center offers free tutoring for MATH171 - please see their website for more details. 

Office of Disability Services:  Any student who feels s/he may need an accommodation based on the impact of a physical, psychological, medical, or learning disability should contact me privately. If you have not already done so, please contact Longwood's Office of Disability Support Services to register for services.

Class Schedule:  Below is a very tentative class schedule.  This schedule may change due to class pace, etc.  However, it is provided here for your information.  For a more detailed schedule depending on our actual classroom interaction please see the Calendar page of the Stats Portal.

Week of Class

Topics Covered

Corresponding Chapters in Textbook
1

Course Introduction

Graphical and Numerical Displays of Data

Chapters 1 & 2
2

More on Graphical and Numerical Displays of Data

The Normal Distribution

Chapters  2 & 3
3

More on the Normal Distribution

Scatterplots and Correlation

Chapters 3 & 4
4

Regression

Chapter  5
5

Producing Data:  Sampling and Experiments

Chapters 8 & 9
6

Review for Test 1

Test 1

 
7

Probability and Sampling Distributions

Chapters 10 & 11
8

More on Probability and Sampling Distributions

Introduction to Inference - Confidence Intervals

Chapters 11 & 14
9

Introduction to Inference - Hypothesis Testing

Inference in Practice

Chapters 15 & 16
10

Inference About a Population Mean

Chapter 18
11

Inference about a Population Proportion

Chapter 20
12

Review for Test 2

Test 2

 
13

Two Sample Problems

Comparing Two Proportions

Chapters 19 and 21
14

Review for Final Exam

 
15

Final Exam

 

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