步骤

标准化回归方程

标准差

回归系数检验

1

Y = 0.193X

SE = 1.403

t = 3.352**

2

M = 0.353X

SE = 0.857

t = 6.411***

3

Y = 0.044X

+0.443M

SE = 1.374

SE = 0.083

t = 0.773

t = 8.387***