Question 5 of 20 50 Points Suppose "ATS" indicates the average test score of a class, "SmallClass" is a dummy variable which equals to 1 if the class size is smaller than 20, and 0 otherwise, and "LargeClass" is a dummy variable which equals to 1 if the class size is larger than or equal to 20, and 0 otherwise. Which of the following regression functions has perfect multicollinearity? O A. ATS= Bo + B SmallClass + u O B. ATS= Bo + B2 LargeClass + u O C. ATS= Bo + Bi SmallClass + B2 LargeClass + u O D. ATS= B1 SmallClass + 2 LargeClass + u Reset SelectionO Question 6 of 20 50 Points In a regression containing an intercept and K independent variables, if you wanted to test, using a 5% significance level, whether or not the coefficient of a specific independent variable is equal to one, you could A. see if the coefficient is between 1-5% and 1+5%. OB. check if the adjusted R is close to 1. O C. subtract 1 from the estimated coefficient, divide the difference by the standard error of the estimated coefficient, and check if the result is larger than t2.5% (n-K-1). OD. divide the estimated coefficient by its standard error, and check if the result is larger than t2.5% (n-K-1). Reset Selection