(1 point) LDL - low density lipoprotien - cholesterol is considered the bad cholesterol. A pharmaceutical company conducts a clinical trial on people with high levels of LDL cholesterol. The trial involves a random sample of n = 12 persons who have high levels of LDL. Each person has their LDL level measured prior to the beginning of the drug trial. Each person is then to take a new drug that is believed to lower ones LDL levels. After a period of 4- weeks, the LDL level of each person is measured again. The difference between the initial LDL level and the LDL-level four weeks after taking the drug is then computed. 0.32, 0.16, 0.56, 1, 0.07, 0.7, 0.7, O.28, 0.51, 0.26, 0.53, 0.03 Data from the sample, are saved in the Download .csv file. Assuming the difference in the LDL-levels is Normally distributed, find a 95% confidence interval for y, the mean difference in the LDL-level of a person after taking the drug for four weeks. Use at least four decimals for your lower and upper bounds. To avoid Rounding errors you use use R-Studio and not Tables. (-0.4671) 555 S #3 0.0952 5!! X 1 -0.32 2 -0.16 3 -0.56 4 5 0.07 6 -0.7 7 -0.7 8 -0.28 9 -0.51 10 -0.26 11 -0.53 12 -0.03