Calculation of Indirect Effect (Manually)

[WaqasAli1125]

Hello Everyone,
My model is following

Path std. dev t-value p-value
X->Y= 0.338 0.077 4.400 0.000
X->M 0.581 0.053 10.981 0.000
M->Y 0.347 0.061 5.713 0.000


i have calculated indirect path coefficient manually

path = 0.581*0.347= 0.201 (Correct according to SmartPLS)
std.dev = 0.053*0.061= 0.0032 (Incorrect)
t-value= 10.981*5.713= ---- (Incorrect)

Please help me in this regard how to calculate std.dev, t-values and p-values

@christian.nitzl and @nils_hachmeister i need your help please