Determine whether subliminal messages were effective in increasing math test scores, and if so, by how much. Key ideas: Paired Versus Unpaired Data, Regression to the Mean, Two-Sample t-Test, Placebo Effect, Experiments, Sample Size and Power, and Effect Size (Cohen’s d).
JMP features demonstrated:
Analyze > Distribution, Graph > Graph Builder, Analyze > Fit Y by X
Statistical/graphical tools used:
Histograms, summary statistics, box plots, t-Test and pooled t-Test, normal quantile plot, Wilcoxon Rank Sums test, Cohen's d.