Reading 11- LOS F (Part 2): Q16 class, 2008, style

cfaedu

16.Construct a 95% confidence interval for the slope coefficient for Commercial Construction.

A)   1.25 + 1.96(3.78).

B)   1.25 + 1.96(0.33).

C)   0.76 + 1.96(0.09).

D)   0.76 + 1.96(8.44).

[此贴子已经被作者于2008-4-1 13:48:49编辑过]

cfaedu

The correct answer was B)

The confidence interval for the slope coefficient is b₁ ± (t_c x s_b1).