Dropbox Assignment 4 {23 Marks) Complete your questions using the software suggested and save into a Word document. Submit a single Word document in the dropbox for grading. Q1 3 marks True or False. If false, provide an explanation. a} Some of the residuals from a least squares linear model will be positive and some will be negative. b} Least squares means that some of the squares of the residuals are minimized. c} We write it to denote the predicted values and v to denote the observed values. (12 20 marks Data for 25 Western Hemisphere countries can be used to examine the association between life expectancy and the birth rate [number of births per 1,000 population} a} Create a scatter plot relating Life Expectancy to Birth Rate and describe the association. Are the regression assumptions satisfied? b} Is there an outlier? If so, set it aside and identify it before computing the regression. c} Find the equation of the regression line with the outlier removed. d} Make a plot of the residuals and comment. e) Is the line an appropriate model? f] Interpret the value of R2 . g} If government leaders want to increase life expectancv, should they encourage women to have fewer children? Explain