2) [5 pts] A survey of 877 business executives found that 45% of them would not hire someone with a typographic error on their job application. Identify the population, sample, and variable. Population: Sample: Variable: Is the variable Categorical or numerical? 3) [6 pts] Over a \"year period, researchers studied a sample of 707 individuals from a single community. They recorded the number of hours each individual spent watching television during adolescence and early adulthood. In later years, they recorded the number of aggressive acts by individuals in the study. Science magazine published the results in 2002 in an article titled "Television Viewing and Aggressive Behavior during Adolescence and Adulthood.\" a) Is the above a controlled experiment, an anecdote, or an observational study? Justify. b) What is the treatment variable? What is the response variable? c) Can you conclude causality? why or why not