The estimated regression equation for these data is
y = -13.82 +1.911 +4.602
Here SST = 15,170.4, SSR = 13,990.9, sb, = 0.2465, and Sb₂
0.9528,
a. Test for a significant relationship among #1, #2, and y. Use α = 0.05.
F=
X
0.09
The p-value is less than 0.01
At a = 0.05, the overall model is
significant
b. Is B₁ significant? Use a = €0.05 (to 2 decimals). Use t table.
= 0.002
tą₂
(to 2 decimals)
The p-value is less than 0.01
At a = 0.05, B1 is
significant.
c. Is ₂ significant? Use a = 0.05 (to 2 decimals). Use t table.
X
=
0.004
÷
The p-value is less than 0.01
At a = 0.05, B₂ is
significant.