Define the p-Value, Then Explain How to Test Two Price Series for Cointegration
Company: Jain Global
Role: Data Scientist
Category: Statistics & Math
Difficulty: easy
Interview Round: Technical Screen
Overview: Two statistics questions from a systematic trading screen: give a precise definition of the p-value and its common misreadings, then explain what cointegration is and how to test two price series for it. It tests hypothesis-testing rigor, stationarity, the difference between correlation and cointegration, and multiple-testing pitfalls.