Week1-4up_001

# Week1-4up_001 - STA 2023 c D.Wackerly Lecture 1 1 STA 2023...

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Unformatted text preview: STA 2023 c D.Wackerly - Lecture 1 1 STA 2023 Fall 2002 Thought for the day: Never wrestle with a pig. You both get dirty and the pig likes it. Lecturer: Dennis Wackerly 222 Griffin-Floyd Hall 392-1941 Ext. 227 Office Hours: Tuesday 9:00 AM – 12:00 noon Text: Statistics (8th Ed), by McClave and Sincich. Software CD : Minitab (bundled with NEW copy of text, alone or as part TI-83 Graphing Calculator Handbook with Minitab CD, by Kelly). Notes in this class are not to be used for commercial purposes. Note-takers for A+ Notes are not welcome. STA 2023 c D.Wackerly - Lecture 1 2 Course Web page http://web.stat.ufl.edu/ dwack/S2023F02 Computer tools (Acrobat Reader, Stuffit Expander) FULL version of syllabus (download immediately) Formula Sheet Folder of Data sets (Projects and Homework) Projects “Answers” to projects (2 days before quiz/exam) How to get started with Minitab How to convert McClave data set to Minitab format Course notes (Friday for following week) Sample quizzes, exams STA 2023 c D.Wackerly - Lecture 1 3 HOW TO SUCCEED REGULARLY attend both lectures and discussions. Read and use the text. ACTIVELY do the assignments. DON’T FALL BEHIND! For Tomorrow: Pages 2–10, 39 – 44. Exercises : 1.13, 1.19 – 1.23, 2.32, 2.35–2.36 For Wednesday: Pages 44–46, 50–54. STA 2023 c D.Wackerly - Lecture 1 4 Chapter 1 Populations, Samples, Statistical Inference STATISTICS : a branch of science that is concerned with collecting and interpreting data. 1. How can I COMMUNICATE data to others? DESCRIPTIVE STATISTICS (p. 2) – Summarize Data – Histograms (Section 2.2) – Pie Charts, Stem and Leaf Diagrams – Numerical Summaries 2. How can data be used to REACH CONCLUSIONS? INFERENTIAL STATISTICS (p. 3) STA 2023 c D.Wackerly - Lecture 1 5 Population: a large body of units representing ALL of the items of interest to the data collector. (Defn 1.4, p.4) Variable: a characteristic of an individual population unit that is of interest. (Defn 1.5, p.4) Sample: A subset of items selected from the population. (Defn 1.6, p.5) Contains the information that we actually analyse. EXAMPLE : Population of interest : the group of U.F. students who graduated May 4, 2002. Characteristics (Variables) of interest . – Income of parents – GPA – Have job or not? – Number of semesters to graduate. STA 2023 c D.Wackerly - Lecture 1 6 EXAMPLE : According to a survey of 1,002 adults published in USA Today , of the TV viewers who had seen the Lubriderm “See you later alligator” skin lotion commercials liked them a lot. Population of interest ALL TV viewers who have seen the commercials in the U.S. Characteristic (Variable) of interest Like commericals or not? Sample TV viewers actually interviewed in the survey....
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Week1-4up_001 - STA 2023 c D.Wackerly Lecture 1 1 STA 2023...

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