N = 20

Regression Summary for Dependent Variable: Y3―Amount of gluten, % (Akmola region )

R = 0.23750872 R2 = 0.05641039 Adjusted R2 = -----

F(2,17) = 0.50815 p < 0.61046 Std.Error of estimate: 6.6214

b*

Std.Err. of b*

b

Std.Err. of b

t(17)

p-value

Intercept

−3.81125

29.71275

−0.128270

0.899441

X1―the amount of precipitation, mm

0.085746

0.257198

0.01549

0.04648

0.333386

0.742920

X2―air temperature, ˚C

0.258543

0.257198

1.38292

1.37572

1.005231

0.328880