Statistics Spring 2008 Introduction Dr Robb T Koether Office Bagby 114 Office phone 223 6207 Home phone 392 8604 before 11 00 p m Office hours 2 30 4 00 MWRF 3 30 4 00 T Other hours by appointment E mail rkoether hsc edu Web page http people hsc edu faculty staff robbk Wed Aug 22 2007 Introduction 2 The Course The class meets in Bagby 022 at 8 30 9 20 MWF and at 2 30 3 20 T The text for the course is Interactive Statistics 3rd ed by Martha Aliaga and Brenda Gunderson The web page for this course is at http people2 hsc edu faculty staff robbk Math121 Wed Aug 22 2007 Introduction 3 Introduction Syllabus Lectures Assignments Page xi Interactive Exercises Page xvi Graphing Calculator Wed Aug 22 2007 Introduction 4 Grading There will be Weekly quizzes Three tests A final exam Wed Aug 22 2007 Introduction 5 Grading In the final average these will have the following weights Category Average of quizzes Average of the tests The final exam Wed Aug 22 2007 Introduction Weight 30 50 20 6 Homework The homework is the most important part of this course Learning mathematics requires gaining knowledge and understanding but more importantly doing mathematics is a skill You should not expect to acquire a skill by listening to a lecturer talk about it It takes practice Do all of the homework every day Wed Aug 22 2007 Introduction 7 Homework More importantly do not put off doing the homework until the night before the quiz You will not be able to learn that much material in one night Most importantly of all do not put off doing the homework until the day before a test By then it is too late to learn it Wed Aug 22 2007 Introduction 8 Homework At the beginning of each class meeting except on Tuesdays I will spend up to 10 minutes working one or two homework problems in detail from previous assignments You may request a problem that you would like to see worked Of course outside of class I will help you with as many problems as I can Wed Aug 22 2007 Introduction 9 Quizzes Each Tuesday there will be a 10 minute quiz The quiz will contain 1 to 3 questions taken from the previous week s homework assignments The problems will be copied verbatim from the book Wed Aug 22 2007 Introduction 10 Tests The test schedule is as follows Test 1 2 3 Wed Aug 22 2007 Date Fri Feb 15 Fri Mar 21 Fri Apr 18 Coverage Chapters 1 2 3 4 Chapters 5 6 7 Chapters 8 9 10 11 Introduction 11 The Final Exam The final exam will be cumulative It will be given in this classroom at the time stated in the exam schedule Everyone must take it It will not be rescheduled Do not schedule a flight home before the exam You will lose your ticket Wed Aug 22 2007 Introduction 12 Attendance Attendance will be checked at the beginning of each class Two late arrivals will be counted as one absence The only valid excuses for missing class are An illness which includes a visit to the Health Center or a doctor An approved college activity A true emergency Any absence excused by the Dean of Students Wed Aug 22 2007 Introduction 13 Attendance Sending me an e mail or leaving me a voice message does not excuse you from class Wed Aug 22 2007 Introduction 14 Attendance When assigning final grades attendance will be taken into account Absences 0 2 3 5 6 8 8 Wed Aug 22 2007 Action Grade bonus Neutral Grade penalty Withdrawal Introduction 15 Calculators A calculator will be necessary for this course I strongly recommend the TI 83 or the TI84 Wed Aug 22 2007 Introduction 16 The Honor Code Quizzes tests and the final exam are pledged Wed Aug 22 2007 Introduction 17 Classroom Etiquette During a lecture you are free to ask questions It is polite to raise your hand first and wait to be called on You should not talk to other students while I am talking While working assigned problems in class you are free to talk to other students provided you are talking about the assigned problems Wed Aug 22 2007 Introduction 18 Classroom Etiquette Do not make leave the room during the class If necessary use the bathroom before coming to class If you are thirsty get a drink before class Do not sleep in class Do not work on assignments from other classes during class Do not read the newspaper during class Wed Aug 22 2007 Introduction 19 Goals of this Course To learn statistics The theoretical basis of the statistical method How to perform statistical tests How to interpret statistics To become a more sophisticated thinker To become a more sophisticated consumer of information Wed Aug 22 2007 Introduction 20 Goals of this Course To get you through your freshman year with a decent GPA Wed Aug 22 2007 Introduction 21 The Scientific Method Formulate a theory Collect some data Summarize the results Make a decision Wed Aug 22 2007 Introduction 22 The Scientific Method Formulate a theory Chapter 1 Collect some data Summarize the results Make a decision Wed Aug 22 2007 Introduction 23 The Scientific Method Formulate a theory Chapter 1 Collect some data Chapters 2 3 Summarize the results Make a decision Wed Aug 22 2007 Introduction 24 The Scientific Method Formulate a theory Chapter 1 Collect some data Chapters 2 3 Summarize the results Chapters 4 5 Make a decision Wed Aug 22 2007 Introduction 25 The Scientific Method Formulate a theory Chapter 1 Collect some data Chapters 2 3 Summarize the results Chapters 4 5 Make a decision Chapters 9 14 Wed Aug 22 2007 Introduction 26 The Scientific Method Formulate a theory Chapter 1 Collect some data Chapters 2 3 Summarize the results Chapters 4 5 Make a decision Chapters 9 14 Theoretical underpinnings Chapters 6 8 Wed Aug 22 2007 Introduction 27 Formulate a Theory We are wondering about the distribution fo colors in bags of milk chocolate M Ms The manufacturers state that the distribution is Blue 24 Orange 20 Green 16 Wed Aug 22 2007 Yellow 14 Brown 13 Red 13 Introduction 28 The Expectation If we buy a bag of 53 milk chocolate M Ms how many of each color do we expect to see 24 of 53 12 72 14 of 53 7 42 20 of 53 10 60 13 of 53 6 89 16 of 53 8 48 13 of 53 6 89 Wed Aug 22 2007 Introduction 29 Formulate a Theory Do we really expect to see that many of each color Wed Aug 22 2007 Introduction 30 Formulate a Theory The theory that the distribution agrees with the company s statement will be tested by posing it as a question with two competing answers Question Does the distribution of observed colors agree with what we would expect to see if the company s claim is correct Wed Aug 22 2007 Introduction 31 Formulate a Theory The possible answers yes …
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