'  г
 г  
   
   
...


г y = ax + b












' Y X i
г

( )
k = a = 0.0665
( )


σy0 = 9.2891 + 0.0357 = 9.3248
, x y

R 2= 0.9981 2 = 0.9962
99.6159 % y. - -
x y x 2 y 2 x ∙ y y(x) (y-y cp) 2 (y-y(x))2 (x-x p) 2
38 2.5 1444 6.25 95 2.5802 2.5892 0.0064 529
41,2 2.8 1681 7.84 114.8 2.7796 1.7137 0.0004 400
45,1 3.1 2025 9.61 139.5 3.0455 1.0183 0.003 256
57,9 3.8 3249 14.44 216.6 3.8432 0.0955 0.0019 16
59,8 4 3481 16 236 3.9761 0.0119 0.0006 4
63,5 4.3 3969 18.49 270.9 4.242 0.0364 0.0034 4
66,9 4.5 4356 20.25 297 4.4415 0.1528 0.0034 25
73 4.8 5329 23.04 350.4 4.9068 0.4774 0.0114 144
75,3 5 5625 25 375 5.0397 0.7937 0.0016 196
75,8 5.1 5625 26.01 382.5 5.0397 0.9819 0.0036 196
79 5.3 6241 28.09 418.7 5.3057 1.4183 0 324
671 45.2 43025 195.02 2896.4 45.2 9.2891 0.0357 2094



T
T (n-m-1;a) = (9;0.05) = 1.833
T > T , 0 . , -
( )


r(0.996;1.0002)






Sa = 0.0014


, 95% Y X = 67
(4.3865;4.6294)

1) t-


a

b

, 95% :
(a - ta Sa; a + taSa)
(0.064;0.069)
(b - t b Sb; b + tbSb)
(-0.1037;0.2118)
2) F-.
F-

Fkp = 5.12
F > Fkp,