Brossa

Brossa

New page: Z-transformation: <math>Z_s=\frac{\sum_{i=1}^k Z_n}{\sqrt{k}}</math> Weighted Z-method: <math>Z_W=\frac{\sum_{i=1}^k w_i Z_i}{\sqrt{\sum_{i=1}^k w_i^2}}</math> where <math>w = \frac{1}{(...