The document discusses the importance of data quality, proper use of statistics, and correct interpretation of results in statistical analysis. It provides a 3 step approach: 1) Ensuring high quality data by addressing issues like missing values and outliers. 2) Appropriate use of statistical techniques after defining the variables and objectives clearly. Considering issues like correlation, normality, and model assumptions. 3) Careful interpretation of results while preserving the multidimensional nature of phenomena and considering partial correlations between variables. It emphasizes the need for collaboration between data miners, statisticians and domain experts for successful knowledge discovery.