( CONFIDENCE BAND BY y°-DIST. — v/ay(a) ~ v/by(a) 
90% 
CONFIDENCE BAND BY N-DIST. { 1+1.64V2W } 1 ~ 
fae | 
DEG. OF FREEDOM v 
200 300 500 
Fig. 2.19. Confidence band by y2-distribution, and 
Gaussian distribution (90% level). 
: 2 
S@)—s@)I a) at) (2.106) 
| s(@) 7 a) ai: {| 
in particular if we ignore the bias 
b(w) = 0, 6@) = c(p)n@). (2.107) 
iii.) The signal to noise ratio introduced by Parzen” is 
40 
