Class Assignment 5

0_Plan_Asignatura_Programación_2026_1

This analysis uses NHANES data to examine bone mineral density (BMD) through one-way ANOVA and correlation methods. Part 1 tests whether BMD differs across five ethnic groups, including assumption checks, effect size calculation, and post-hoc comparisons. Results show significant ethnic differences (p < 0.001), with Non-Hispanic Black individuals having higher BMD. Part 2 explores correlations between BMD and potential predictors (age, BMI, calcium, vitamin D, physical activity) using transformed variables. BMI shows the strongest association with BMD (r = 0.425), while age shows a negative relationship (r = -0.232). Part 3 reflects on methodological choices, assumption challenges, and R programming skills developed during the analysis. Methods: R with tidyverse, ggplot2, broom, and car packages.

In-Class Assignment on February 17th, 2026

GUÍA MAESTRA – SEMANA DOS Visualización y EDA inicial con Python y R

In Class Activity to better understand the mutate