**** No plagiarism please *** 4-1 What is the meaning of least squares in a regression model?4-3 Discuss how the coefficient of determination and the coefficient of correlation are related and how they are used in regression analysis.4-4 Explain how a scatter diagram can be used to identify the type of regression to use.4-6 Explain what information is provided by the F test.4-7 What is the SSE? How is this related to the SST and the SSR?4-8 Explain how a plot of the residuals can be used in developing a regression model.