When a dummy variable is included in a multiple regression model, the interpretation of the estimated slope coefficient does not make any sense.

38) The least squares regression line is obtained when the sum of the squared residuals is minimized.
A. True B. False

39) When a dummy variable is included in a multiple regression model, the interpretation of the estimated slope coefficient does not make any sense.
A. True B. False

40) An inverse relationship between an independent variable x and a dependent variable y means that, as x increases, y decreases, and vice versa.
A. True B. False

41) If the coefficient of correlation is –0.81, then the percentage of the variation in y that is explained by the regression line is 81%.
A. True B. False

42) Except for the values r = -1, 0, and 1, we cannot be specific in our interpretation of the coefficient of correlation r. However, when we square it, we produce a more meaningful statistic.
A. True B. False
Download 2 Sets of Final Exams : click HERE

RES 342 RES342 Final Exam