The Excel-fonnat spreadsheet, Econ-3280_Assignmenr_i_am, contains data on the price [$0} and sqt (size measured in square feet} of 20 homes recently sold in a particular small city. For each of the following questions, make all necessary calculations using only a calculator or a spreadsheet [as shown in class}. [Do not use regression software}. Show all of your calculations. (a) Using the sample data, estimate the values of [in and l for the simple linear regression model given by: priccl- = n + lsqrfrr- + My. [h]: Interpret your values of 43h and 19:1 in the context of the variahles' definitions and units of measurement. (c) Using your results from part (a), calculate the error (ME) for each of the 2f] observations. (d) What do the errors calculated in part (c) represent? (e) Calculate the standard error of the regression {3"}. {f} Interpret the standard error of the regression (sh) calculated in pan (e). (g) Calculate the standard error offi. [i.e., Suthi' (h) Interpret the value ofspzl calculated in part (g). {i} Test the hypothesis that the size ofa home has no effect on price in this small city. Use the 5% level of signicance. Interpret your result