Microsoft Word - Quiz 5Microsoft Word - Quiz 5

1. A variable such as Z, whose value is Z = X1X2 is added to a general linear model in order to account for potential effects of two variables X1 and X2 acting together. This type of effect is
   1. impossible to occur
   2. called interaction
   3. called multicollinearity effect
   4. called transformation effect
   What value of Durbin-Watson statistic indicates +ve autocorrelation is present?
   1. Between dL and dU
   2. Between (4-dL) and (4-dU)
   3. Between 0 and dL
   4. Between dU and (4-dU)
   What value of Durbin-Watson statistic indicates no autocorrelation is present? a. 1 b. 2 c. -2 d. 0