A regression model in the form of y = b0 + b1x1 + e is referred to as a

1.   ?    simple first-order model with two predictor variables
2.   ?    simple second-order model with one predictor variable
3.   ?    simple second-order model with two predictor variables
4.   ?    simple first-order model with one predictor variables
5.   ?    none of the above

A regression model in the form of y = b0 + b1x1 + b₂X²+ e is referred to as a

1.   ?    second-order model with three predictor variables
2.   ?    second-order model with two predictor variables
3.   ?    second-order model with one predictor variable
4.   ?    first-order model with one predictor variables
5.   ?    none of the above

Serial correlation is the

1.   ?    correlation between serial numbers of products
2.   ?    same as autocorrelation
3.   ?    same as leverage
4.   ?    none of the above

The joint effect of two variables acting together is called

1.   ?    autocorrelation
2.   ?    interaction
3.   ?    serial correlation
4.   ?    none of the above

A test to determine whether or not first order autocorrelation is present is

1.   ?    a t test
2.   ?    an F test
3.   ?    a test of interaction
4.   ?    none of the above

Which of the following tests is used to determine whether additional variables make a significant contribution to a multiple regression model?

1.   ?    a t test
2.   ?    a z test
3.   ?    an F test
4.   ?    none of the above

In multiple regression analysis, the general linear model

1.   ?    can not be used to accommodate curvilinear relationships between dependent variables and independent variables
2.   ?    can be used to accommodate curvilinear relationships between independent variables and dependent variables
3.   ?    must contain more than two independent variables
4.   ?    none of the above

The range of the Durbin-Watson statistic is between

1.   ?    a. -1 and 1
2.   ?    0 and 1
3.   ?    - infinity and + infinity
4.   ?    0 and 4
5.   ?    none of the above

The multiple regression approach to the analysis of variance uses dummy variables.

1.   ?    True
2.   ?    False

The correlation in error terms that arises when the error terms at successive points in time are related is termed

1.   ?    leverage
2.   ?    multicorrelation
3.   ?    autocorrelation
4.   ?    parallel correlation
5.   ?    none of the above