Exer 7.3 [s2007/s2007-5B]

For each of the following pairs of models, mark the statement that is most correct.

Part 1 ______________________________________________________________________________________________

Model 1: . A ~ B+C
Model 2: . A ~ B*C

A	Model 1 is nested in Model 2.
B	Model 2 is nested in Model 1.
C	The two models are the same.
D	None of the above is true.

Part 2 ______________________________________________________________________________________________

Model 1: . A ~ B
Model 2: . B ~ A

A	Model 1 is nested in Model 2.
B	Model 2 is nested in Model 1.
C	The two models are the same.
D	None of the above is true.

Part 3_______________________________________________________________________________________________

Model 1: . A ~ B + C
Model 2: . B ~ A * C

A	Model 1 is nested in Model 2.
B	Model 2 is nested in Model 1.
C	The two models are the same.
D	None of the above is true.

Part 4 ______________________________________________________________________________________________

Model 1: . A ~ B + C + B:C
Model 2: . A ~ B * C

A	Model 1 is nested in Model 2.
B	Model 2 is nested in Model 1.
C	The two models are the same.
D	None of the above is true.