The data in Demographics.csv is obtained from a sample of 890 individuals living in a large city. For each individual, we measure their Income (in 1000's), Age, Sex, and whether or not they are Married. 1. (2pts) Construct a 90% confidence interval for the average Age in the city. 2. (2pts) Construct a 95% confidence interval for the proportion of Married peo- ple in the city. 3. (3pts) Construct a 99% confidence interval for the proportion of people making $100,000 or more in the city. 4. (2pts) Income tends to be positively skewed. Is this problematic when forming a confidence interval for income? If so, explain. If not, state the theorem that allows you to construct the confidence interval. 5. (1pt) Define what it means to be "95% confident." Use the definition described in class.