STAT422 - Mathematical Statistics - Spring 2017
When you can measure what you are speaking about and express it in numbers you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of an unsatisfactory kind - Kelvin (1824-1907)
- Syllabus
- Al's email, Office Phone: 994-5145, Office: Barnard (EPS) 304, Office Hours and Schedule.
- Useful links:
- R download page
- Stat Course Catalog
- Final exam schedule for Spring 2017
- Search classes
- Exams:
- 5/4 Exam 3, Wilson 1-144, 6:00 - 7:50pm, Chapters 7 - 10, 16. Here's a list of topics. Closed book, no notes. You will be given a sheet of common distributions (like
in the back cover of your text), and this list of formulas. Here are practice problems from 2011:
- Practice final exam - ignore problems 1mno, 2bcde, 5. Solutions.
- You also may want to go back and do the second practice exam. Solutions.
- You also may want to go back and do the first practice exam. Solutions.
- 4/3 Exam 2 on chapters 9 and 16. Solutions. Here's a list of topics. Closed book, no notes. You will be given a sheet of common distributions (like in the back cover of your text), and this list of formulas. Here is a practice exam - ignore problems 1efghkm, 3-6, 12-13. Practice exam solutions.
- 2/17 Exam 1 on chapters 7 and 8. Solutions. Here's a list of topics. Closed book, no notes. You will be given a sheet of common distributions (like in the back cover of your text), and this list of formulas. Here is a practice exam and solutions.
- 5/4 Exam 3, Wilson 1-144, 6:00 - 7:50pm, Chapters 7 - 10, 16. Here's a list of topics. Closed book, no notes. You will be given a sheet of common distributions (like
in the back cover of your text), and this list of formulas. Here are practice problems from 2011:
- Projects and HWs:
- DUE: 4/26 Project 9 on Chapter 10 (powerful tests). Solutions.
- DUE: 4/17 Project 8 on Chapter 10 (hypothesis testing). Mountain biking article, alligator example. Solutions.
- DUE: 3/31 Project 7 on Chapter 16 (Bayesian estimation). Solutions
- DUE: 3/24 Project 6 on Chapter 9 (large sample variance and CLT for MLEs). Solutions
- DUE: 3/10 Project 5 on Chapter 9 (MOMs and MLEs). Solutions
- DUE: 3/3 Project 4 on Chapter 9 (consistency, sufficiency, MVUEs). Solutions
- DUE: 2/13 Project 3 on Chapter 8. Solutions
- DUE: 2/6 Project 2 on Chapters 7 and 8 (included are practice problems from Chapters 7 and 8). Solutions
- DUE: 2/1 HW: (1) State the Central Limit Theorem; (2) Prove the Central Limit Theorem.
- DUE: 1/27 Project 1 on Chapter 7. Solutions
- DUE: 1/20 HW: Derive the expected value and variance of the sample mean from iid data
- Course Schedule:
- 4/28 Course Review
- 4/26 §10.11 Likelihood Ratio Tests
- 4/24 §10.10 Uniformly Most Powerful tests, approximate large sample most powerful
tests
- 4/21 §10.10 Powerful tests and the Neyman Pearson Lemma
- 4/19 §10.9 Hypothesis tests of two population variances
- 4/17 §10.5, 10.9 Hypothesis testing with CIs; Testing the variance from a single population
- 4/14 NO CLASS
- 4/12 §10.4 Sample Size calculations
- 4/10 §16.5 Issues with "non-informative" priors. Using Markov Chain Monte Carlo
for drawing posterior samples
- 4/7 §10.3, 10.8 Hypothesis testing with asymptotically normal estimators, one-sample t-test
- 4/5 §10.4, 10.6 Hypothesis testing with p-values and rejection regions, one-sample test of proportions, Type I and Type II errors
- 4/3 Exam 2
- 3/31 Review
- 3/29 §10.1-2 Hypothesis Testing and the Scientific method
- 3/27 §16.3 Bayesian interval estimators (credible or probability intervals), Bayesian
posteriors for a normal mean and variance
- 3/24 §16.2 Using a posterior from a previous data analysis as a prior in a new data analysis.
- 3/22 §16.2 Conjugate priors and Bayesian point estimators.
- 3/20§16.1, 16.5 Posterior and prior information. "Non-informative" flat priors.
And who needs marginals anyways? Chapter 16 Notes
SPRING BREAK!!!!
- 3/10 §16.1 Bayes rule
- 3/8 §9.8 Cramer-Rao lower bound for MLE variance, CLT for MLEs
- 3/6 §9.7 Beautiful properties of MLEs: sufficiency, MVUE, consistency, invariance
- 3/3 §9.7 MLE examples: Geometric and Poisson.
- 3/1 §9.6-7 Method of moments (MOM), Method of maximum likelihood (MLE)
- 2/27 §9.5 Rao-Blackwell Theorem, MVUE
- 2/24 §9.4 Sufficiency, Factorization Theorem, likelihood function
- 2/22 §9.3 Consistent point estimators for the population mean, variance and standard devation; Stutsky's Theorem
- 2/20 PRESIDENTS DAY
- 2/17 Exam 1
- 2/15 Review
- 2/13 §9.3 Consistency, General Weak Law of Large Numbers
- 2/10 §8.9, 9.2 CI for Variance example. Efficiency. Review of Chebyshev's Theorem (Thm 4.13). Calculating t and F CIs in R: Alligator means; chi-square CIs in R: Biofilm repeatability.
- 2/8 §8.9 Two-sample CI for a difference in means assuming equal variances, CI for a population variance.
- 2/6 §8.7-8 Interpreting CIs! Sample size calculations; CIs for parameters whose
estimators are (asymptotically) normal and the variance is UNknown, two-sample CI
for difference in means
- 2/3 §8.5-8.6 Pivotal method, CIs for parameters whose estimators are (asymptotically) normal and the variance is known
- 2/1 §8.5 Confidence intervals
- 1/30 §8.1-8.4 point and interval estimators, bias, MSE, MVUEs
- 1/27 §7.4 Proof of the Central Limit Theorem
- 1/25 §7.2 Sampling distributions: F distribution
- 1/23 §7.2 Sampling distributions: chi-square, t
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- 1/20 §7.5 Normal approximation of the binomial
- 1/18 §7.2-7.3 Mean, Variance and Sampling Distribution of the sample mean; Central Limit Theorem
- 1/16 §7.1 Statistics and Sampling Distributions, Chapter 7 Notes
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- 1/13 Tying together STAT421 and STAT422 with the Scientific Method
- 1/11 Welcome! Remember the Scientific Method?