: 1 , 1 ; 2 2 . 1, 2. α : : 1 = 2.
.
:
.
:
) 1: 1 ≠ 2 u , | U | > u.
) 1: 1 > 2 u - , : U > u.
) : 1 < 2 U < u, u ).
. 20 8 , 15 7 . α = 0,05
: 1 = 2 : 1 < 2.
.
, -
, = 1,645, U < - 1,645. = U > u, , , , .
(, Y), rB ≠ 0. α :
Ho: r = 0 1: r ≠ 0.
,
k = n 2 . - | T | > t, t (α, k) .
. = 150, - , rB = - 0,37. α = 0,01 Ho: r = 0 1: r ≠ 0.
.
t (0,01; 150) = 2,58. : | T | > t, - , Y .
|
|
- .
:
xi | x 1 | x 2 | ... | xs |
ni | n 1 | n 2 | ... | ns |
(, -, .) , -
,
χ 2 k = s 1 r, s , r . -, α - χ 2.
, , -, , :
) = ∙ i, , xi xi + 1 i - , - , s . , k = n 3;
) λ . = ∙ i, . - , k = n 2;
) ,
, :
k = n 3, .
. ,
2 5 | ||
5 8 | ||
8 11 | ||
11 14 | ||
14 17 | ||
17 20 |
α = 0,05 :
) ; ) ; )
.
.
= 70. : 1 = 3,5, 2 = 6,5,, 6 = 18,5.
= 11,43; σ = 4,03; s = 4,05.
)
χ 2(0,05;4)=9,5; .
)
: .
) :
- - .
|
|