We covered Ch. 13-6 Rank Correlation (Rank correlation test, rank correlation coefficient, causation, correlation), 13-7 Run Test for Randomness (Run, randomness), 14-1 Statistical Process Control (Monitoring process parameters over time to detect changing patterns), 14-2 Control Charts for Variation and Mean (Run chart, statistically stable, variations R Chart, means x-bar chart), 14-3 Control Chart Attributes (p-charts for proportions). We watched a video on the practical applications of data and statistics to the comparison of historical warriors, in this case the apache to the gladiator.