
Chapter 15
PB
Multiple Regression Analysis
563
15A1. Assume that x
1
and x
2
are the independent variables
and y the dependent variable in the data provided in
the table below. Determine the line of regression.
Comment on the coef cient of multiple determina-
tion (R
2
) and the standard error of the model. Let
a= 0.05.
x
1
14 16 17 19 15 13 21 20 19
x
2
16 17 20 22 18 20 23 22 19
y 15 17 16 14 18 20 22 25 23
15A2. Assume that x
1
and x
2
are the independent variables
and y the dependent variable in the data provided in
the table below. Determine the line of regression.
Comment on the coef cient of multiple determina-
tion (R
2
) and the standard error of the ...