Dive into advanced Excel techniques for statistical analysis in this comprehensive 26-minute tutorial. Master Power Query for data import and transformation, utilize array formulas to create a 5-Number Summary, and learn to construct Box & Whiskers Charts from both improper and proper data sets. Explore topics including QUARTILE.INC function, calculating means and outliers, and interpreting CPA data set box plots. Gain proficiency in using COUNTIFS, FILTER array functions, and converting single input-output formulas to spilled array formulas. Understand the difference between improper and proper data sets, and learn how to use Power Query's unpivot feature for data transformation. By the end of this tutorial, create professional Box & Whisker Charts and enhance your Excel skills for statistical analysis.