1-α/2 (α) | 0.900 (α=0.2) | 0.950 (α=0.1) | 0.975 (α=0.05) | 0.990 (α=0.025) | 0.995 (α=0.01) | 0.999 (α=0.002) |
f | ||||||
1.476 | 2.015 | 2.571 | 3.365 | 4.032 | 5.893 | |
1.372 | 1.812 | 2.228 | 2.764 | 3.169 | 4.144 | |
1.341 | 1.753 | 2.131 | 2.602 | 2.947 | 3.733 | |
1.330 | 1.734 | 2.101 | 2.552 | 2.878 | 3.610 | |
1.325 | 1.725 | 2.086 | 2.528 | 2.845 | 3.552 | |
1.319 | 1.714 | 2.069 | 2.500 | 2.807 | 3.485 | |
1.316 | 1.708 | 2.060 | 2.495 | 2.787 | 3.450 | |
1.315 | 1.706 | 2.056 | 2.479 | 2.779 | 3.435 | |
1.314 | 1.703 | 2.052 | 2.473 | 2.771 | 3.421 | |
1.313 | 1.701 | 2.048 | 2.467 | 2.763 | 3.408 | |
1.311 | 1.699 | 2.045 | 2.462 | 2.756 | 3.396 | |
1.310 | 1.697 | 2.042 | 2.457 | 2.750 | 3.385 | |
1.303 | 1.684 | 2.021 | 2.423 | 2.704 | 3.307 | |
1.296 | 1.671 | 2.000 | 2.390 | 2.660 | 3.232 | |
1.289 | 1.658 | 1.980 | 2.358 | 2.617 | 3.160 | |
∞ | 1.282 | 1.646 | 1.960 | 2.326 | 2.576 | 3.090 |
f . f = n 1. f = 1 + 2 2.
R :
a) t- ( );
b) (n 1) t- ... (. . 12);
c) t t;
d) tp > t, R .
. :
R = 0.18 n =1000, tp =6, tT= 1.96, tp > t0.05 < 0.001
R = 0.52 n = 8, tp =1.43 tT= 2.45, tp < tt0.05 < 0.2
: .
12) (Rb) , , . - *.
* .: .., .. - . - , 1989. - . 47-48.
X 1 Y;
0 - X 0 Y;
δ - X;
1 1 Y;
n0 0 Y;
n .
Rpb -1 +1. Rxy.
. (1) ( ) (. . 13).
|
|
13
Rpb | |||
= 14.8 | |||
0=7 | |||
δx = 4.48 | |||
n1 =5 | |||
n0 = 5 | |||
n= 10 | |||
9 | |||
x = 10.9 | Rpb=0.92 | ||
δx = 4.48 |
13) , , .
, , . , .
, , () .
( , ) , ( ) .
14) t- , υ- , F- , . , , . t- u- . F- .
;
n ;
δ .
t - :
) t-;
) t- ... (. . 12);
) t- (tp) (t);
) t > t, ;
) t < t, .
. t- , (/ ?). . 14.
14