About this question
Medium · backtesting · Quant Researcher interview question · statistics, hypothesis testing, scipy
Hypothesis testing provides a statistical framework to determine if a trading strategy's average return is significantly different from zero or merely the result of random noise. By calculating the T-Statistic and P-Value, quantitative researchers can assess the validity of a strategy against a null hypothesis of zero mean return. This process is essential for rigorous backtesting and minimizing false discoveries in algorithmic trading. Task Implement a function solution(returns) that calculate