On an excel sheet answer the following (assume that the data represent a population of workers at a company): 1. Develop a 5-number summary for Household Income ($) [Min, Q1, Q2, Q3, Max]. Briefly describe your results. [4 points] 2. Develop 95% confidence interval for the mean age and household income of subscribers. Explain your results [3 points] 3. Develop 95% confidence interval for the proportion of subscribers who have Internet access at home and the proportion of subscribers who have children. Explain your results. [3 points]