Please help me with this question, thank you! *STATA preferred to work with the

Question

Please help me with this question, thank you!
*STATA preferred to work with the data file but if N/A, then excel file attached.
Dta file: http://www.filedropper.com/a2q5
Excel file: http://www.filedropper.com/a2q5_1

x1 y1 x2 y2 x3 y3 x4 y4
10 8.04 10 9.14 10 7.46 8 6.58
8 6.95 8 8.14 8 6.77 8 5.76
13 7.58 13 8.74 13 12.74 8 7.71
9 8.81 9 8.77 9 7.11 8 8.84
11 8.33 11 9.26 11 7.81 8 8.47
14 9.96 14 8.1 14 8.84 8 7.04
6 7.24 6 6.13 6 6.08 8 5.25
4 4.26 4 3.1 4 5.39 19 12.5
12 10.84 12 9.13 12 8.15 8 5.56
7 4.82 7 7.26 7 6.42 8 7.91
5 5.68 5 4.74 5 5.73 8 6.89

Data extract from excel file (link provided).

Question 4 [10 points]. Use the A2Q5. dta dald for this question. 'his data contains cight cmns, or or suh-datascts". ach of theso datasets consists of observations onr, ) pairs, or 1,2,3, 1. T'hus cight columns for 1 diffcrent pairs. (a) load the data into yor program and provide smmary statistics for the data. Brictly comment what the key slalistics (the four omeuls: ea,std devia kewnes aud kurlosis) are ad tell you abou e dala (b) Creale four diflereut scatter plots for each of the (r) pairs, witl y he depedeut variable and i the indepondont, as we natally denote thom in econometrics (c) stimate four different Ol.S rogressions yi-+ 1zi + u, , fri-1.2, 3, 4, respec lively. for each of he , ) pais, respectively. (You ca assune the errors ae homoskedastic here.) Report he reyression resuls ad co o e coeliciens ad eir standard errors. What do you nolice? (d)inally, r0-create the scatter plots as in part(b), blit inchide the regression line through each. What do yon obsrve What does this tell ns abont visally inspect the data?

Explanation / Answer

PFA the STATA commands for the following questions.

*Part 1
tabstat x1 y1 x2 x3 y2 y3 x4 y4, statistics( skewness kurtosis sd mean ) columns(variables)
*Part 2
twoway (scatter y1 x1, sort)
twoway (scatter y2 x2, sort)
twoway (scatter y3 x3, sort)
twoway (scatter y4 x4, sort)
*Part 3
reg y1 x1
reg y2 x2
reg y3 x3
reg y4 x4

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