MATH220 Introduction to Statistics Fall 2009 Instructor Lihua

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					                MATH220 Introduction to Statistics Fall 2009

Instructor: Lihua Chen
          Office: Roop Hall 328    Office phone: 540-568-5106
          Office hours: TR 3:30-4:30   W 2:00-5:00 and by appointment
Text: Statistics: The Art and Science of Learning from Data, Alan Agresti,
Christine Franklin, 1st edition.
   Course Website: chen3lx/math220
               Tests (3, 100 pts each)
               Quizzes(50 pts)
               Final (200 pts)
               Homeworks(100 pts)
Grading scale: If you reach these scores, you are guaranteed at least the
corresponding grade: A :≥ 92, B :≥ 82, C :≥ 72, D :≥ 62. The actual cutoff
points may depend upon the performance of the class and the difficulty of the
    Testing and homework policy: You are responsible for all material either
through lectures, handouts, or the textbook. Unannounced quizzes will be given
and quizzes may NOT be made up. Late homeworks will NOT be accepted. Up
to two quizzes and one homework with lowest scores may be dropped. Up to
one test may be missed with the final worth an extra 100 points.
    If you complete all homeworks, quizzes and tests, you have the option of
taking a grade based on those scores and dropping the final exam grade. Your
grade will be available on the review day prior to finals week. To choose this
option, you must be present to turn in written notice on that review day.
    Final exam: The final will be given at the scheduled exam time.
    For locations of computers, see
    The Learning Center offers free tutoring in Math 220 in Roop 200. For
additional information, see or call 568-3379.
    The final date to withdraw with a ”W” is October 22.

   Tentative Outline
Chapter 1:    Statistics: the art and science of learning from data
             What is statistics, Sample and Population, Statistics software

Chapter 2: Exploring data with graphs and numerical summaries
           Types of data, Visualizing data, Measures of center,
           Measures of spread

Chapter 3: Association: contingency, correlation, and regression
           Association between two categorical variables,
           Association between two continuous variables,
           Predicting an outcome

               (Test 1)

Chapter 4:    Gathering data
             Experiment and observational study, Good ways to sample,
             Good ways to experiment

Chapter 5:    Probability in our daily lives
             Probability to quantify uncertainty, Finding the probability,
             Conditional probability

Chapter 6:    Probability distributions
             Bell-shaped distributions, Binomial distributions,
             Sampling distribution

             (Test 2)

Chapter 7:    Statistics inference: confidence intervals
             Point and interval estimate, Estimate a population proportion,
             Estimate a population mean, Sample size determination

chapter 8:    Statistical inference: significance tests about hypotheses
             Significance tests about proportions and means

chapter 9:    Comparing two groups
             Compare two proportions, Compare two means

             (Test 3)

chapter 10: Analyzing the association between categorical variables
           Independence and association, Test independence
           Measure the strength of association, Fisher’s exact test
This is a tentative schedule. The actual contents may be altered based on the
time limitation and the needs of the students.


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