( , .) , . , : , - , , . , .
, , (). , . () , , .
:
- ;
- , - () ;
- , ;
- ;
- - , , .
, , , - (). () .
:
- ;
- ;
- .
, , , , , , .
, , .
|
|
, . , , , , , [20].
[4].
:
(6.8)
m ; i i . t 0 i, t i t i :
i = t 0 i + t i + t i ; (6.9)
q i - i :
(6.10)
λi i .
. , . (6.8), :
(6.11)
T p i i , n .
, (6.8), .. . , :
f (t )=(1 / ) × (- t / ), (6.12)
T p T p :
T p = T p · r 2, (6.13)
T p = T p · r 1. (6.14)
r 1 r 2, c2 , 6.4 n (Î).
6.4 - r 1 r 2
n | (Î) | |||||||
r 1 | r 2 | |||||||
0.99 | 0.95 | 0.9 | 0.8 | 0.99 | 0.95 | 0.9 | 0.8 | |
13.5 | 5.63 | 3.77 | 2.42 | 0.30 | 0.42 | 0.51 | 0.67 | |
4.35 | 2.93 | 2.29 | 1.74 | 0.40 | 0.52 | 0.60 | 0.73 | |
3.36 | 2.29 | 1.90 | 1.54 | 0.46 | 0.57 | 0.65 | 0.76 | |
2.75 | 2.01 | 1.72 | 1.43 | 0.50 | 0.61 | 0.60 | 0.78 | |
2.42 | 1.83 | 1.61 | 1.37 | 0.53 | 0.64 | 0.70 | 0.80 | |
2.01 | 1.62 | 1.46 | 1.28 | 0.59 | 0.68 | 0.74 | 0.83 | |
1.81 | 1.51 | 1.37 | 1.24 | 0.63 | 0.72 | 0.77 | 0.85 | |
1.43 | 1.28 | 1.21 | 1.14 | 0.74 | 0.80 | 0.84 | 0.89 | |
1.28 | 1.19 | 1.14 | 1.09 | 0.80 | 0.86 | 0.88 | 0.92 |
6.4 [4].
- n = 10 20 . (Î) = 0.95 .
|
|
:
) (6.11)
= 20 / 10 =2 ;
) 6.4 n = 10 (Î) = 0.95 r 1 = 1.83 r 2 = 0.64, (6.13) (6.14) I Î :
T p = T p· r 2 = 2 · 0.64 = 1.28 ;
T p = T p· r 1 = 2 · 1.83 = 3.66 ;
I Î = 1.28 ¸ 3.66 .
, , :
f (t ) = (4 × t / 2) × (-2× t / ). (6.15)
:
T p = T p / d 2; (6.16)
T p = T p / d 1. (6.17)
d 1 d 2 6.5 n (Î).
6.5 - d 1 d 2
N | (Î) | |||||||
d 1 | d 2 | |||||||
0.99 | 0.95 | 0.9 | 0. 8 | 0.99 | 0.95 | 0. 9 | 0. 8 | |
0.362 | 0.500 | 0.581 | 0.700 | 2.00 | 1.64 | 1. 47 | 1. 28 | |
0.464 | 0.620 | 0.688 | 0.785 | 1.66 | 1.43 | 1. 34 | 1. 20 | |
0.473 | 0.650 | 0.713 | 0.813 | 1.53 | 1.35 | 1. 29 | 1. 19 | |
0.570 | 0.700 | 0.766 | 0.850 | 1.43 | 1. 30 | 1. 23 | 1. 15 | |
0.629 | 0.740 | 0.800 | 0.870 | 1.37 | 1. 26 | 1. 20 | 1. 13 | |
0.697 | 0.788 | 0.835 | 0.892 | 1.30 | 1. 22 | 1. 16 | 1. 11 | |
0.765 | 0.830 | 0.870 | 0.916 | 1.23 | 1. 17 | 1. 13 | 1. 08 | |
0.835 | 0.880 | 0.910 | 0.940 | 1.16 | 1. 12 | 1. 09 | 1. 06 |
6.5 [4].
n = 30 . , , 6.6. (Î) = 0.9 .
6.6 - ,
ni | qi = ni / n | T p i, | å i, | |
0.2 | 80; 59; 108; 45; 73; 91 | |||
0.333 | 56; 36; 44; 42; 33; 32; 23; 75; 61; 28 | |||
0.14 | 26; 34; 19; 23 | |||
0.23 | 60; 73; 91; 58; 44; 82; 54 | |||
0.1 | 125; 133; 108 |
:
) (6.11)
1 = (80 + 59 + 108 + 45 + 73 + 91) / 6 = 76 .,
2 = 430 / 10 = 43 .,
3 = 102 / 4 = 25.5 .,
4 = 462 / 7 = 66 .,
5 = 366 / 3 = 122 .
) (6.8)
T p i i ; qi = ni / n - i ( ).
,
T p = (76·0.2 + 43·0.33 + 25.5·0.14 + 66·0.23 + 122·0.1) 60 .
) 6.5 n = 30 Î = 0.9 d 1 = 0.835 d 2 = 1.22 (6.16) (6.17) I Î :
T p = T p / d 2 = 60 / 1.22 = 51.5 .,
T p = T p / d 1 = 60 / 0.835 = 71.85 .,
I Î = 51.5 ¸ 71.85 .