Multiple choice

1. A researcher finds that the correlation coefficient between two variables is 0.20. She wants to know if this level of correlation is meaningful from a managerial perspective or not. She is interested in determining the __________ significance of her results.

A. statistical 

B. determination 

C. linearity 

D. substantive 

2. In bivariate regression analysis, the procedure used to determine the best fitting line is called the __________ procedure.

A. least squares 

B. squared error 

C. sum of errors 

D. least error 

3. If a researcher is interested in measuring the effect of two independent variables on a dependent variable, he/she should use:

A. pearson correlation coefficient. 

B. spearman correlation coefficient. 

C. bivariate regression analysis. 

D. multiple regression analysis. 

4. Multicollinearity is:

A. a statistical procedure that estimates regression equation coefficients which produce the lowest sum of squared differences between the actual and predicted values of the dependent variable. 

B. a statistical technique which analyzes the linear relationship between a dependent variable and multiple independent variables by estimating coefficients for the equation for a straight line. 

C. an estimated regression coefficient which has been recalculated to have a mean of zero and a standard deviation of 1. 

D. a situation in which several independent variables are highly correlated with each other.