El objetivo de este análisis es aplicar técnicas de comparación estadística no paramétrica para evaluar diferencias entre grupos (independientes y relacionados) y asociaciones entre variables categóricas, utilizando datos de la cohorte de escolares colombianos.

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This is a submission for PSYCH 251: Problem Set 4 (visualization and simulation)

This report presents the analysis for Research Scenario 2 from Assignment 6, which investigates whether there is a statistically significant difference in customer satisfaction scores between customers served by human agents and those assisted by an AI chatbot. Due to violations of normality assumptions and the presence of outliers, the non-parametric Mann-Whitney U test was employed. The report includes descriptive statistics, visualizations (histograms and boxplots), normality checks using the Shapiro-Wilk test, and effect size estimation to assess the magnitude of the observed difference.

Done for a stats assignment.

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