Hello, please help me with this:

Are the following statements True or False? Please giVe a brief explanation as to why. Thank vaul Unless otherwise specied, the questions refer to regression one below ya: = 50 +31$1s+ \"'+rc117k,s+ (1) i_We know that least squares assumption 1 is valid, if we have a coefcient of correlation equal to zero between the regressors $13, . . . , ink; and the regression residuals z- ii. Below are two regression models {2) and {3}: 3%: = 50 + 513:1,1' + \"Uri: (2) ya = (20 + 051182; + B- (3) Regression [3) always has a larger R2 than regressiOLt (2). iii. Let's say that the rst regression {1} contains an omitted variable 33k+1,i , and this is correlated to the regressor 3531,27 Because of this,61is biased. However, [ am able to still utilize a tstatistic in order to test whether 31 = 0. iv. Looking at regTBSSiOH (2): [31 2 U tells \"5 that 531,1? is positively correlated with 3h