statistical-analysisот anthropic

Statistical methods for descriptive analysis, trend detection, outlier identification, and hypothesis testing with practical business interpretation. Covers descriptive statistics (mean, median, percentiles, spread measures), trend analysis with moving averages and period-over-period comparisons, and simple forecasting methods for business analysts Includes three outlier detection approaches (z-score, IQR, percentile methods) with guidance on investigating and handling anomalies rather than...