1, ,n - N(a,s2) ; s2 . s2:
, . (7)
,
I (x) = (a1 (), a2 ()),(8)
, , (9)
tp - (1+ )/2 n-1 .
s
I (x) = (s1 (), s2 ()), (10 )
, , (11)
t1 t2 - (1+ )/2 (1- )/2 - n-1 .
n=20 a = 10, s2= 22=4 a s : 0.8, 0.9, 0.95, 0.98, 0.99, 0.995, 0.998, 0.999. . C , n - .
. . 2 - 4.
, , , , (9) (11). , a
,
tp - n-1 , s
,
t2 - 1- - n-1 .
: s = 0.95.
1) ( . );
2) , ;
3) ;
4) .
:
, ,
2- : ( . 1.2),
( . 1.3),
, ( . 1.4).
.
1. n1 n2- ; 1,,n1; y1,,yn2. , 0 s1 s2 . a .
¹ | n 1 | n 2 | s1, êì | s2, êì | Ð ä | a, êì |
0.95 | ||||||
0.98 | ||||||
0.95 | ||||||
0.98 | ||||||
0.95 | ||||||
0.98 | ||||||
0.95 | ||||||
0.98 | ||||||
0.95 |
|
|
.
( ).
, = ;
I=(, ),
- (1+ )/2 N(0,1).
2. N =10000 . ,
, x ³ 0
n ; 1,,n. . , , 50 .
n | |||||||||
Ð | 0.95 | 0.99 | 0.95 | 0.99 | 0.95 | 0.99 | 0.95 | 0.99 | 0.95 |
à |
.
( ).
;
Ia = (, ),
t1=Q (2n, (1-)/ 2), t2=Q (2n, (1+)/ 2) - - 2n ;
IM = (N (1- exp (- )), N (1- exp (- ))).
3. e,
p e (x) = , - ¥ < x < ¥.
1,,n .
n | |||||||||
b | |||||||||
Ð | 0.95 | 0.98 | 0.95 | 0.98 | 0.96 | 0.98 | 0.95 | 0.98 | 0.95 |
a |
.
( ). - [ n/2 ] + 1
,
( ). , -
I =(),
tp=Q((1+)/2) - (1+ )/2 N(0,1).
4. , . - , N(ai, si2 ), i=1,2 - , . q 1- n . 1,,n q . .
|
|
n | |||||||||
à1 | |||||||||
à2 | |||||||||
ÐÄ | 0.95 | 0.95 | 0.98 | 0.95 | 0.95 | 0.98 | 0.95 | 0.95 | 0.98 |
q | 0.5 | 0.4 | 0.3 | 0.5 | 0.4 | 0.3 | 0.5 | 0.4 | 0.3 |
s1=1, s2=1. q.
( ):
I = (q1, q2 ),
, an º ,
tp - (1+ )/ 2 N (0,1).