30549  MATHEMATICAL STATISTICS
Department of Decision Sciences
BOTOND TIBOR SZABO
Lezioni della classe erogate in presenza
Suggested background knowledge
Mission & Content Summary
MISSION
CONTENT SUMMARY
 Descriptive statistics on univariate and bivariate samples. Sample means, variances and correlations
 Point estimation: Maximum likelihood estimators; Method of moments; Bayesian estimators; Mestimators
 Hypothesis testing: pvalues and statistical significance, likelihood ratio tests, Wald Test, permutation test, Person’s chisquare test, multiple testing
 Confidence regions: definition and frequentist interpretation, pivotal quantities and construction of confidence intervals, Bayesian credibility regions
 Optimality theory: sufficient statistics, estimation theory and hypothesis testing. The exponential family of distributions.
 Regression models: simple and multiple linear regression, ANOVA, logistic regression and classification, LASSO, ridge regression
 Model selecion: Stepdown, stepup methods, AIC, BIC, crossvalidation
 Nonparametric models (e.g. nonparametric regression, density estimation), minimax estimation rates
 Additional topics: Modern high dimensional models (e.g. Matrix completion, sparse Gaussian graphical models).
Intended Learning Outcomes (ILO)
KNOWLEDGE AND UNDERSTANDING
 Deal with statistical tools that lie at the foundations of modern Data Science applications.
 Understand the mathematical background of standard statistical methods.
 Develop a multivariable thinking that is essential to understand and model large and complex datasets.
 Develop a critical thinking: identify drawbacks and merits of both the frequentist and the Bayesian approaches to statistical inference.
 Understand the underlying concept of a selection of modern, stateoftheart statistical techniques.
 Profitably attend courses on advanced topics in Probability and Stochastic Processes, Statistics and Machine Learning
APPLYING KNOWLEDGE AND UNDERSTANDING
 Identify and tailor statistical models to specific experiments, with the aim of addressing estimation and hypothesis testing problems.
 Analyze real world data with the help of the statistical software R and interpret the output critically.
 Derive mathematically rigorous underpinning for statistical methods.
Teaching methods
 Facetoface lectures
 Exercises (exercises, database, software etc.)
 Individual assignments
 Interactive class activities (role playing, business game, simulation, online forum, instant polls)
DETAILS
Two 90minute long theoretical lectures and one 90minute long practical/laboratory classes per week.
Assessment methods
Continuous assessment  Partial exams  General exam  


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ATTENDING AND NOT ATTENDING STUDENTS
1) The exam can be passed by either taking two partial tests or by taking the general exam.
2) In order to pass the exam by means of the two partial tests one has to get at least 15/25, as an average, with equal weights, with minimum mark at least equal to 12/25.
3) In order to pass the exam by means of the general exam, one has to get at least 15/25.
4) Those who pass the midterm exam, may take the second partial test at the end of the course.
5) Students whose average mark of the two partial exams is no larger than 15/25 or have obtained a mark of 11/25, or below, in one of the two tests must take the general exam.
6) In the Pilot research project, which is mandatory, the student has to show that she/he is able to formulate a real world statistical problem, collect or find, preprocess, describe, and analyze the corresponding data, interpret the outcome and write a max 5 page long report. Students are encouraged to work in pairs. The Pilot Research project worth 5 points.
7) At the end of the theoretical lectures approximately 15 minutes long online quizzes will be given in Kahoot/mentimeter and the best performing students will be awarded fractions of bonus points. The total number of bonus points a student can collect during the course is capped at 2 points.
8) The final grade is the sum of the two partial exams, or the general exam, (max 25 points), the pilot research project (max 5 points) and the bonus points from the online quizzes (max 2 points). Total points greater than or equal to 31 imply honors.
Both partial exams, as well as the general exam, are written tests with exercises. They aim at assessing the students' ability to solve simple problems in Mathematical Statistics. They require the application of analytical tools and univariate and multivariate calculus techniques that have been taught during the course.
Teaching materials
ATTENDING AND NOT ATTENDING STUDENTS
Fetsje Bijma, Marianne Jonker, Aad van der Vaart, An Introduction to Mathematical Statistics, Amsterdam University Press, 2016
Johannes SchmidtHieber, Lecture notes (pdf will be provided)
Suggested further reading:
Larry Wasserman, All of Statistics: A Concise Course in Statistical Inference (Springer Texts is Statistics), 2005