Question: Section 1: True or false? Circle the appropriate choice {I point each). 1. In the simple linear regression model E(Y|X = 2:) = :30 +

 Section 1: True or false? Circle the appropriate choice {I point

Section 1: True or false? Circle the appropriate choice {I point each). 1. In the simple linear regression model E(Y|X = 2:) = :30 + [312: Var(Y|X = 2:) = 02 the intercept g has the same unit of measurement as the predictor variable X. TRUE FALS E 2. The residuals t- = y; 30 312:; h'orn least squares estimation of the simple linear regression model will always have mean equal to zero, that is 3:2\" g = 0. i=1 TRUE FALS E 3. If we t the simple linear regression model Elm-'17] = 30 + B1 los(m) and obtain 61 = 1.2, then the predicted value for a. case with o: = 2a will be about el'2 = 3.32 units greater than the predicted value for a case with :r = a (assuming both a and 2a are within the range of plausible {it-values). TRUE FALS E 4. If we t the simple linear regression model E[log(y)|a:] = so + 191 logo) and obtain 51 = 0.80, then the predicted value for a case with :c = 2a will be about 20-3 = 1.74 times the predicted value for a case with a: = 0. (assuming both a and 2a are within the range of plausible :c-values). TRUE FALS E

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