Akmola region (1994-2015 гг.)

N = 20

Regression Summary for Dependent Variable: Y2―Vitreousity, % (Akmola region)

R = 0.73985409 R2 = 0.54738407 Adjusted R2 = 0.46251859 F(3,16) = 6.4500 p < 0.00454 Std.Error of estimate: 0.77579

b*

Std.Err. of b*

b

Std.Err. of b

t(16)

p-value

Intercept

19.59657

10.52919

1.861166

0.081197

X1―the amount of precipitation, mm

0.211492

0.186526

0.00627

0.00553

1.133843

0.273564

X2―air temperature, ˚C

0.752275

0.183963

0.66039

0.16149

4.089271

0.000856

X3―relative humidity of air, %

0.321971

0.172608

0.34466

0.18477

1.865327

0.080581

Kostanay Region (1996-2015 гг.)

N = 18

Regression Summary for Dependent Variable: Y2―Vitreousity, % (Kostanay Region)

R = 0.48225595 R2 = 0.23257080 Adjusted R2 = 0.06812169 F(3,14) = 1.4142 p < 0.28024 Std.Error of estimate: 2.3851

b*

Std.Err. of b*

b

Std.Err. of b

t(14)

p-value

Intercept

29.28470

11.25110

2.602831

0.020862

X1―the amount of precipitation, mm

0.149295

0.241798

0.00825

0.01337

0.617438

0.546858

X2― air temperature, ˚C

0.398858

0.255169

0.55304

0.35380

1.563114

0.140342

X3―relative humidity of air, %

0.436908

0.247948

0.17286

0.09810

1.762097

0.099863

North-Kazakhstan region (2005-2015 гг.)

N = 9

Regression Summary for Dependent Variable: Y2―Vitreousity, % (North-Kazakhstan region)

R = 0.65085468 R2 = 0.42361181 Adjusted R2 = 0.07777890 F(3,5) = 1.2249 p < 0.39206 Std.Error of estimate: 1.1762

b*

Std.Err. of b*

b

Std.Err. of b

t(5)

p-value

Intercept

37.07419

31.77867

1.166637

0.295968

X1―the amount of precipitation, mm

0.376798

0.870646

0.00637

0.01471

0.432780

0.683206

X2―air temperature, ˚C

0.334661

0.842769

0.39557

0.99616

0.397096

0.707680

X3―relative humidity of air, %

0.413951

1.229435

0.09356

0.27788

0.336700

0.750015