# Exercise 1 - New York City /r/ with Rbrul - GoldVarb-esque logistic regression with categorical predictors
#
# Use data in .csv file "http://www.danielezrajohnson.com/ds.csv".
#
# Question 1: which of the factor groups has a statistically-significant effect on the use of /r/, and which of their factors favor and
disfavor /r/, and to what extent?