Karen Grace-Martin5 Steps for Calculating Sample SizeNearly all granting agencies require an estimate of an adequate sample size to detect the effects hypothesized in the study. But all…Apr 24, 2024811Apr 24, 2024811
Karen Grace-MartinBeyond R-squared: Assessing the Fit of Regression ModelsA well-fitting regression model results in predicted values close to the observed data values. The mean model, which uses the mean for…Jun 12, 2024701Jun 12, 2024701
Karen Grace-MartinWhat is an ROC Curve?An incredibly useful tool in evaluating and comparing predictive models is the ROC curve.Feb 21, 2024101Feb 21, 2024101
Prof. FrenzelWhat Every Business Analyst Must Know — Part1: Statistical MeasuresMeasures of Central Tendency, Variability, Quartiles, Z-Scores, and as always: Correlation does not imply Causation!Feb 4, 20241.3K11Feb 4, 20241.3K11
InData And BeyondbyDima DiachkovHow to run and interpret MULTIPLE regression models in R: quick guide with real-world economic dataWarm welcome, dear reader. Last week we tackled simple regression (previous article), trying to capture the effect of one variable on the…Oct 24, 20231021Oct 24, 20231021