Applied statistics (Economics, organizations and markets) PROF. GIUSEPPE BOARI COURSE AIMS To teach the concepts of probability and inference, and to introduce and examine the main statistical models (multiple regression, variance analysis and logistical regression), with applications in the business and corporate environment. With the use of practical assignments on the computer, the course also aims to equip the student with the operational skills needed for independently solving several concrete cases. COURSE CONTENT References to the calculus of probability The main probabilistic models: uniform, binomial, and normal random variables and continuous variables associated with it. The central limit theorem. First elements of statistical inference Probabilistic sample. The sample distribution of several basic statistics. Point and interval estimation Estimators and main properties. Confidence intervals. Inference about the mean value of a normal population and a proportion. Verification of assumptions General aspects of statistical tests. Principal parametric tests (for the mean value of a normal population and a proportion), for one and two samples. The test for comparing mean values over two or more samples (single-route ANOVA). Models for empirical analysis in the business/corporate field The multiple linear regression model: assumptions, F test and t test on regression coefficients. Regression with categorical explicative variables. Diagnostic techniques based on the analysis of residuals. The chi-squared test of independence and adaptation. Logistical regression. READING LIST S. BORRA-A. DI CIACCIO, Statistica. Metodologie per le scienze economiche e sociali, McGraw Hill, Milan, 2014 (The course topics are covered in Chapters 10-14, 16-19, 21). or G. CICCHITELLI, Statistica: principi e metodi, Pearson, Milan, 2012, second edition (The course topics are covered in Chapters 12-19, 21). TEACHING METHOD Lectures and assignments in class. Students taking this class are required to have passed the Statistics I class. ASSESSMENT METHOD Written test (essay questions and exercises). A mid-term test is planned; the details about this test will be indicated by the individual professors and posted on their web pages. NOTES Further information can be found on the lecturer's webpage http://www2.unicatt.it/unicattolica/docenti/index.html, or on the Faculty notice board. at

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# Applied statistics (Economics, organizations and markets)