4. For problem 4, import the data in R from: https:/,/raw.githubusercontent.corn/'hgweon2/ss3859,/master/hw2-data-2.csv The data set contains 100 observations with 2 variables: y (response) and (predictor). Consider the SLR model: Yi = + + q. Obtain the fitted model. Using the residual plot and the normal QQ plot, check the linearity, normality and equal variance assumptions. (Justify your answer). Do the Breusch-Pagan test and Shapiro-Wilks test at a = 0.05. Interpret the test results. (3 pt) 5. Repeat problem 4. This time, import the data from: https://raw.githubusercontent.com/hgweon2/ss3859/master/hw2-data-3.csv. (3 pt)