"Empower Your Economics Skills with Interactive Problem-Solving Sessions"

Soumya assisted Harjot in preparing for an upcoming exam by reviewing key concepts in time series analysis, including serial correlation, the Breusch-Godfrey test, HAC standard errors, and static vs. dynamic models. Harjot is working on practice questions to reinforce these concepts. They scheduled another session for Wednesday to complete the remaining topics and address any questions Harjot may have.

Soumya Aggarwal tutored Harjot Kaur on heteroscedasticity, covering its definition, consequences, detection through informal and formal tests (Breusch-Pagan and White tests), and methods to address it. They also introduced serial correlation. Harjot was assigned questions on heteroscedasticity tests, and their next class is scheduled for Tuesday.

Soumya tutored Zoe on inscribed angles and cyclic quadrilaterals. Zoe practiced problems to improve her understanding of these geometric concepts. They also briefly discussed right triangles as a possible topic for a future session.

Harjot tutored Soumya on OLS properties and assumptions, covering topics such as multiple linear regression, R-squared, the OLS estimator, orthogonality, the BLUE property, and the classical linear regression assumptions. They also discussed the implications of zero error, normally distributed errors, the Law of Iterated Expectations, and the variance of the OLS estimator. Their plan is to complete tutorials 7 and 8.

Harjot and Soumya reviewed week six material, focusing on model selection, including log-level, level-log, log-log, and quadratic models, along with information criteria (AIC, HQ, BIC). They discussed the formulas, interpretations, and applications of these models and criteria. They scheduled a follow-up meeting.

Soumya tutored Harjot in statistics, covering t-tests and F-tests through practice problems. They focused on hypothesis testing, interpreting coefficients, calculating test statistics, and using critical values. Soumya advised Harjot to practice previous tutorial questions, and they plan to continue simplifying the concepts in future sessions.