2. Using 50 observations, the following regression output
is obtained from estimating y
= β0 + β1x + β2d1 + β3d2 + ε.
Coefficients
Standard
Error
t Stat
p-value
Intercept
−0.51
0.20
−2.55
0.0142
x
3.90
1.25
3.12
0.0031
d1
−14.35
17.50
−0.82
0.4164
d2
8.45
2.50
3.38
0.0015
a. Compute yˆy^ for x =
222, d1 =
1, and d2 =
0; compute yˆy^ for x =
222, d1 =
0, and d2 =
1. (Round your answers to 2 decimal
places.)