For Question 2b, since being found on the street is dichotomous and age is continuous, would you use a ttest to see if there is a relation between the two variables? How do you derive a p-value from the ttest? Thank you for your help.
Go back to lab1. You will get your answer by reviewing it. As far as I remember, there were few questions in lab 1 about ttest, chi2, etc.