1
Chapter 6
Solutions to Exercises
Solutions to Exercises in Chapter 6
et2
2
yt y
6.1
R2 1
6.2
To calculate R 2 we need the term
yt y
2
From
2
.
SSR
666.72
0.8455
SST 788.5155
e2
(T K )2
R2 1 t 1
SST
SST
we have,
6.4
yt y
yt2 T y 2 788.5155
The

1
Chapter 4
Solutions to Exercises
Solutions to Exercises in Chapter 4
4.1
If an estimator performs well in repeated samples in the sense that it produces estimates close
to the true parameter value, then, before we take a sample, we can say that the prob