Fitting a Simple Linear Regression Model Example - Search Videos

Problem: Consider fitting a simple linear regression model through the origin, Y = BX Îµ, to a set of data using the least squares method. Give an example of a situation where fitting the model Y = B1X Îµ is justified by theoretical or other physical and material considerations. Show that the least squares estimate of B1 is given by B1 = Î£(XiYi) / Î£(Xi^2). Show that the residuals e1, e2, ..., en will not necessarily add up to zero.

Problem: Consider fitting a simple linear regression model through the origin, Y = BX Îµ, to a set of data using the least squares method. Give an example of a situation where fitting

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