As an exercise on multiple regression, we will analyse the FEV dataset.
The FEV dataset
The FEV, which is an acronym for forced expiratory volume, is a measure of how much air a person can exhale (in liters) during a forced breath. In this dataset, the FEV of 606 children, between the ages of 6 and 17, were measured. The dataset also provides additional information on these children: their age, their height, their gender and, most importantly, whether the child is a smoker or a non-smoker.
Goal
The goal of this experiment was to find out if smoking has an effect on the FEV of children, accounting for potential confounders.
Load libraries and import the data
Data tidying
Data exploration
Visualize the effect of smoking on the FEV. In addition, assess all potential confounders.
Data analysis
Conclusion
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