1. A life insurance company wishes to examine the relationship between the amount of life insurance held by a family and family income. From a random sample of 20 households, the company collected the data in the file insur.dta. The data are in units of thousands of dollars. In this question, use the STATA output wherever possible. a) Use STATA to provide summary statistics for each variable. b) Estimate the linear regression with dependent variable INSURANCE and independent variable INCOME . Write down the fitted model and plot the sample regression line using STATA. Identify the estimated slope and intercept on the plot (you can mark it in pen or pencil on your plot). Locate the point of the means on the plot. c) Interpret your coefficients. d) Provide a 95% confidence interval for the slope. Interpret your result. e) Estimate INSURANCE when INCOME=50