SOC 110 Statistical Analysis Homework 4 (Relevant Chapters: Knoke CH 8 and Lecture Notes) Name: Student ID: Remember to SHOW YOUR WORK (Hand-written) for problems that involve calculations in order to receive partial credit. *For your hand calculation, you can choose to use sither the tenths or hundredths place for rounding, just ensure that your choice is consistent throughout. Please use either a blue or black pen or pencil, and ensure that your handwriting is legible (clear enough to read) for the grader. If you copy and paste the answer from the Al, you will receive a ZERO score. You should submit your homework electronically using a SINGLE PDF file via Canvas by the due date (Course Schedule below). To learn how to create PDF files using a scanning app via your phone or tablet, see the document under course material: \"How to create PDF files and submit them on Canvas.\" Late homework will be only accepted under exceptional conditions; you should talk with your TA before the homework keys will be released. Late posts will have 10 points deducted from your rade for every late day. Problem SET 1 (20 points): A researcher used the 1998 GSS data to examine what influences income (measured in thousands of dollars) among a random sample of Americans. She examined the effects of two categorical variables: race (labeled as white (reference group), black and other) and sex (labeled as male (reference group) and female). She also examined the effects of two continuous variables: education (measured in years) and age (measured in years). The STATA fegression readout is below. reg rincom98 ibl.race ibl.sex educ age Number of obs = 1,843 F(5, 1837) = 123.15 Model 270116.69 5 54023.3381 Prob > F = 0.0000 Residual 805871.356 1,837 438.688816 R-squared = 0.2510 Adj R-squared = 0.2490 Total 1075988.05 1,842 584.141176 Root MSE = 20.945 Std. err. [95% conf. intervall Coefficient black -4.834191 1.445226 -3.34 0.001 -7.668651 -1.999732 other ~2.786347 1.945484 -1.43 0.152 -6.60194 1.029245 Sex female ~11.95228 .9803881 -12.19 0.000 -13.87507 -10.02949 educ 3.272559 .1851675 17.67 0.000 2.909398 3.63572 age -4128012 ,0396661 10.41 0.000 .3350058 .4905965 -30.82456 -18.52762 -24,67609 3.134965