Data from the study are in the file athero Rdata. The descriptions of the variables are as follows. Variable Description get serum GGT level in IU/L log2ggt log2(serum GGT level) sex sex, recorded as male or female age age in years bmi BMI in kg/m2 sbp systolic blood pressure in mm Hg dbp diastolic blood pressure in mm Hg glucose fasting blood glucose in mg/dL tatchol total cholesterol in mg/dL trig triglycerides in mg/dL alcohol alcohol consumption level exer regular exerciser, recorded as noExer or yesExer fattyliver presence of fatty liver disease, recorded as yesFL or noFit barwy measure of arterial stiffness, bapWV, in cm/s Some additional background on certain variables: - Alcohol consumption level was recorded as minimal (0-40 g/week), light (40-140 g/week), moderate (141-280 g/week), or heavy (more than 280 g/week). - Participants were recorded as exercising regularly (yesExer) if they responded yes to whether they exericse more than once in a typical week.e) Investigate the relationship between (log-transformed) serum GGT level and baPWV, accounting for the presence of fatty liver disease. i. Using numerical and graphical summaries, investigate the association of (logtransformed) serum GGT level and ba PWV separately within males and females who have fatty liver disease. Summarize your findings. ii. Using numerical and graphical summaries, investigate the association of (logtransformed) serum GGT level and ba PWV separately within males and females who do not have fatty liver disease. Summarize your findings. iii. Based on these data, would you always recommend that a man presenting with elevated serum GGT level be screened for atherosclerosis? Would you always recommend that a woman presenting with elevated serum GGT level be screened for atherosclerosis? Explain your reasoning