Investigators in the HELP (Health Evaluation and Linkage to Primary...

Investigators in the HELP (Health Evaluation and Linkage to Primary Care) study were interested in modeling the probability of being homeless (one or more nights spent on the street or in a shelter in the past six months vs. housed) as a function of age. (HELPfull dataframe in the mosaicData R package)

1) Generate a confusion matrix for the null model and interpret the result.

2) Fit and interpret logistic regression model for the probability of being homeless as a function of age.

3) What is the predicted probability of being homeless for a 20 year old?

This is using R software.