A city government has collected data on the music preferences and recreational event usage of city residents. They would like to know if individuals that go to the park often differ in their musical tastes than those that attend the park less often; they have measured park attendance as 0 ' never visits' 1 ' visits once a year' 2 'visits once a month' 3 'visits twice per month' 5 'visits more than twice per month'. Musical taste is measured as preferring jazz, soul, classical, or rock music. 1. What is the unit of analysis (5 points)? 1. What are the variables and what is their level of measurement (5 points)