Author Question: A decision maker has five potential independent variables with which to build a regression model to ... (Read 125 times)

cartlidgeashley · **on:** Jun 24, 2018

A decision maker has five potential independent variables with which to build a regression model to explain the variation in the dependent variable. At step 1, variable x3 enters the regression model.

Which of the following indicates which of the four remaining independent variables will be next to enter the model?A) The variable that has the next highest correlation with the dependent variable
B) The variable that will provide the next largest value for the slope coefficient
C) The variable with the highest coefficient of partial determination
D) Can't be determined without seeing the correlation matrix.

Question 2

Which of the following in not an out of control signal for an x-bar chart?

A) One or more points outside the control limits
B) Seven or more consecutive points that all fall on the same side of the center line
C) Six or more consecutive points moving in the same direction (an upward or downward trend)
D) Fourteen points in a row, alternating up and down