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AP STATISTICS Beechwood High School, 2016-17 Ms. Stacey Brand [email protected] (859) 331-1220 ext. 6012, room 12 Planning Period: 2nd hour (9:15am – 10:15am) Course Description: This course is designed to address the guidelines provided by the College Board for the Advanced Placement Statistics examination (Thursday, May 11, 2017). Content includes four broad conceptual themes: exploring data by describing patterns and departures from patterns, sampling and experimentation through planning and conducting a study, anticipating patterns by exploring random phenomena using probability and simulation, and statistical inference through estimating population parameters and testing hypotheses. The TI-84 graphing calculator will be used exclusively and extensively. Course Content: The topics for AP Statistics are divided into four major themes: exploratory analysis (20–30% of the exam), planning and conducting a study (10–15% of the exam), probability (20–30% of the exam), and statistical inference (30–40% of the exam). I. Exploratory analysis of data makes use of graphical and numerical techniques to study patterns and departures from patterns. In examining distributions of data, students should be able to detect important characteristics, such as shape, location, variability and unusual values. From careful observations of patterns in data, students can generate conjectures about relationships among variables. The notion of how one variable may be associated with another permeates almost all of statistics, from simple comparisons of proportions through linear regression. The difference between association and causation must accompany this conceptual development throughout. II. Data must be collected according to a well-developed plan if valid information is to be obtained. If data are to be collected to provide an answer to a question of interest, a careful plan must be developed. Both the type of analysis that is appropriate and the nature of conclusions that can be drawn from that analysis depend in a critical way on how the data was collected. Collecting data in a reasonable way, through either sampling or experimentation, is an essential step in the data analysis process. III. Probability is the tool used for anticipating what the distribution of data should look like under a given model. Random phenomena are not haphazard: they display an order that emerges only in the long run and is described by a distribution. The mathematical description of variation is central to statistics. The probability required for statistical inference is not primarily axiomatic or combinatorial but is oriented toward using probability distributions to describe data. IV. Statistical inference guides the selection of appropriate models. Models and data interact in statistical work: models are used to draw conclusions from data, while the data are allowed to criticize and even falsify the model through inferential and diagnostic methods. Inference from data can be thought of as the process of selecting a reasonable model, including a statement in probability language, of how confident one can be about the selection. Course Outline: First Quarter: I. Exploratory Analysis (20-30% of AP exam) Students will engage in an exploratory analysis of data and make use of graphs numerical calculations to study patterns and/or departures from patterns. Graphing calculators (TI-84), tables and various computer software applications (Fathom, MINITAB, EXCEL) will be used to enhance the instruction and development of a student’s understanding of statistical processes and graphical representations of data. A. Constructing and interpreting graphical displays of distributions of univariate data (dotplot, stemplot, histogram, cumulative frequency plots) 1. Center and spread 2. Clusters and gaps 3. Outliers and other unusual features 4. Shape B. Summarizing distributions of univariate data. 1. Measuring center: median and mean 2. Measuring spread: range, interquartile range, standard deviation 3. Measuring position: quartiles, percentiles, standardized scores (z-scores) 4. Using boxplots 5. The effect of changing units on summary measures C. Comparing distributions of univariate data (dotplots, back-to-back stemplots, parallel boxplots) 1. Comparing center and spread: within group, between group variation 2. Comparing clusters and gaps 3. Comparing outliers and other unusual features 4. Comparing shapes D. Exploring Bivariate Data 1. Analyzing patterns in scatterplots 2. Correlation and linearity 3. Least-square regression line 4. Residual Plots, outliers and influential points 5. Transformations to achieve linearity: logarithmic and power transformations E. Exploring Categorical Data 1. Frequency tables and bar charts 2. Marginal and joint frequencies for two-way tables 3. Conditional relative frequencies and association 4. Comparing distributions using bar charts Second Quarter: II. Planning and conducting a study (10-15% of AP exam) Students will create a well-developed plan to collect valid data in order to answer a question of interest. A. Overview of methods of data collection 1. Census 2. Sample survey 3. Experiment 4. Observational Study B. Planning and conducting surveys 1. Characteristics of a well-designed and well-conducted survey 2. Populations, samples and random selection 3. Sources of bias in sampling and surveys 4. Sampling methods, including simple random sampling, stratified random sampling and cluster sampling C. Planning and conducting experiments 1. Characteristics of a well-designed and well-conducted experiment 2. Treatments, control groups, experimental units, random assignments, and replication 3. Sources of bias and confounding, including placebo effect and blinding 4. Completely randomized design 5. Randomized block design, including matched pairs design 6. Generalizability of results and types of conclusions that can be drawn from observational studies, experiments, and surveys III. Probability (20-30% of AP exam) Students will use the tool of probability to anticipate what the distribution of data should look like under a given model. A. Interpreting probability, including long-run relative frequency interpretation “Law of Large Numbers” concept B. Addition rule, multiplication rule, conditional probability and independence C. Discrete random variables and their probability distributions, including binomial and geometric D. Simulation of random behavior and probability distributions E. Mean (expected value) and standard deviation of a random variable, and linear transformation of a random variable F. Combining independent random variables 1. Notion of independence versus dependence 2. Mean and standard deviation for sums and differences of independent random variables G. The Normal distribution 1. Properties of the Normal distribution 2. Using tables of the Normal distribution 3. The Normal distribution as a model for measurements H. Sampling distributions 1. Sampling distribution of a sample proportion 2. Sampling distribution of a sample mean 3. Central Limit Theorem 4. Sampling distribution of a difference between two independent sample proportions 5. Sampling distribution of a difference between two independent sample means 6. Simulation of sampling distributions 7. t-distribution 8. Chi-square distribution Third/Fourth Quarters: IV. Statistical Inference (30-40% of AP exam) Students will select a reasonable model in order to draw a conclusion from data. Students will use graphing calculators and statistical software to compare and interpret data in order to draw conclusions about the world around them. A. Estimation 1. Estimating population parameters and margins of error 2. Properties of point estimators, including unbiasedness and variability 3. Logic of confidence intervals, meaning of confidence level and confidence intervals, and properties of confidence intervals B. 4. Large sample confidence interval for a proportion 5. Large sample confidence interval for a difference between two proportions 6. Confidence interval for a mean 7. Confidence interval for a difference between two means (unpaired and paired) 8. Confidence interval for the slope of a least-squares regression line Tests of significance 1. Logic of significance testing 2. Null and alternative hypotheses 3. P-values 4. One- and two-sided tests 5. Concepts of Type I and Type II errors 6. Concept of power 7. Large sample test for a proportion 8. Large sample test for a difference between two proportions 9. Test for a mean 10. Test for a difference between two means (unpaired and paired) 11. Chi-square test for goodness of fit, homogeneity or proportions, and independence (one- and two-way tables) 12. Test for the slope of a least-squares regression line **The instructor reserves the right to make modifications to the course outline as needed. Primary Text: Bock, David E., Velleman, Paul F., DeVeaux, Richard D., Stats: Modeling the World (3rd edition). Boston, MA: Addison Wesley, 2010. Additional Resources: Bluman, Allan G., Elementary Statistics: A Step by Step Approach (5th edition). New York, NY: McGrawHill Companies, Inc., 2004. Sternstein, Martin. AP Statistics. Hauppauge, NY: Barron's Educational Series, 2012. Print. Yates, Daniel S., Moore, David S., Starnes, Daren S., The Practice of Statistics. New York, NY: W.H. Freeman, 2003. Required Supplies: Textbook Pencil. All work (homework, quizzes and tests) must be completed in pencil. Any work completed in pen will not be accepted and will result in a zero for the assignment. No exceptions. 1 ½ - 2” Binder with 5 dividers Notebook Paper Graphing Calculator. A TI-84 calculator is required. We will use the calculators extensively and you must have it with you every day. Responsibilities/Expectations: Overall, it is the responsibility of both the teacher and student to be prepared, respectful, involved, dependable, and ethical. Your active participation is necessary to the success of this class. Each day I ask you to take “PRIDE” in your work, behavior and attitude and we will have a very successful year. Please refer to the Beechwood High School Student/Parent and Code of Conduct Handbook for additional information on the school code of conduct and academic course of studies. I will strictly enforce all school policies and will hold you accountable for any breech of your responsibilities. Assignments/Grading Policy: Grade Distribution: Tests and Projects Quizzes and Daily Assignments 50% of overall grade 50% of overall grade The Beechwood High School grading scale is as follows: A B C D F 92-100 84 – 91 76 – 83 70 – 75 below 70 Daily Assignments: You will have an assignment of some kind most every day. Homework will be checked regularly and either graded for completion or accuracy (or both). Regardless of the manner in which the work is collected and/or graded, your effort on the homework assignments will determine your success in this class and ultimately on the AP Statistics Exam. Daily practice is the key. As a rule, I do not give extra credit assignments, regardless of the situation. Your best course of action is to complete assignments on time and to the best of your ability, therefore not needing “extra credit.” Each week, the daily assignments will be posted in the classroom and published in a unit calendar, distributed at the start of each unit of study. Remember, it is your responsibility to keep track of your assignments and any important due dates. Tests/Quizzes: You will have a test at the conclusion of each chapter or unit whereas quizzes will be more frequent and may be announced. Cumulative vocabulary/calculator quizzes will be given to assess the mastery of the language of statistics and the use of your calculator. ALWAYS BE PREPARED. All tests will be formatted to model the AP Statistics Exam (multiple-choice and free response questions) and will be cumulative. No partial credit will be given for the multiple-choice questions. On the other hand, you may earn partial credit on free response questions for valid work and explanation with few errors. Projects: Special projects will be assigned throughout the course so that students can demonstrate their understanding of the topics being discussed. Each project will require the students to effectively communicate experimental methods, results and interpretations using the appropriate vocabulary of statistics. Such projects include: designing surveys and experiments, gathering data, analyzing data numerically and graphically, and applying inferential statistics to draw conclusions for a population. The chapter projects will be graded using an AP grading rubric. The maximum score is a 4 (as in the free response portion AP Statistics Exam) and the minimum score is a 0. Half-points are awarded as necessary. The project grades are recorded out of 40 points…so you should multiply your score by 10 to see what points you have earned on each project. Some projects denoting the chapter and section of the primary text and topics of interest to the investigation are listed on the next page: Race and the Death Penalty (3-15) Dollars for Students (4-17) Marginal/Conditional Distributions Graphical Display of Categorical Data Visual/Verbal Displays of Data Written Analysis of Data SUV Insurance (5-19) Normal Models (6-25) Comparing Summary Statistics/Graphical Displays Drawing Conclusions from Data Data and Analysis Use of the Normal Model Descriptive Data Evaluating the Shape and Distribution Drawing Conclusions from Data Smoking (8-13) Olympic Long Jump (9-9) Find Associations between Two Variables Linear Displays/Linear Regression Evaluating Strength/Appropriateness of Models Using Models to Predict Future Values Linear Models/Linear Regression Residuals, Trends and Slope Using Models to Predict Future Values Alligators (10-9) ESP (11-13) Linear Models/Improved Models Residuals, Trends and Slope Evaluating Appropriateness of Models Simulating a Study Backhoes & Forklifts (13-15) Simulated Coins (18-13) Designing & Conducting an Experiment Simulations & Histograms Comparing Graphical Displays of Data Randomness Life After High School? (21-11) Sample Size and Confidence Interval Hypothesis Test Evaluating Accuracy of Test/Errors on Test Make-up Work: Homework: It is your responsibility to get your assignment when you are absent. I will save a copy of any worksheet and/or handout for you if you are absent. You can find those papers in the file folder hanging on the front cabinet (filed under your class period). You will be awarded one day for each day of an excused absence in order to make up any work missed. Otherwise, late work will not be accepted. Tests/Quizzes: Make-up tests are given before or after school at the teacher’s discretion. Make-up quizzes can be completed at various times: before or after school, during class (if time allows), or at another pre-determined time. All make-up tests and quizzes must be completed within the nine-week grading period in which the original test or quiz was given. Otherwise, the grade will be recorded as a zero. Additional Questions/Concerns? If you need any additional help or have questions about anything throughout the year, please e-mail me or see me during my planning period (2nd period), before or after school. For additional help with homework or test preparation, please check with me to see when I may be available before or after school. I’m looking forward to a wonderful year! ~Ms. Brand